Yang Ming Picks Low Sulphur Fuel for 2020 Sulphur Cap

first_imgzoom Image Courtesy: Pixabay under CC0 Creative Commons license Taiwanese ocean carrier Yang Ming Marine Transport Corporation will follow in the footsteps of industry majors such as Maersk by choosing low sulphur fuel to comply with the upcoming 2020 sulphur cap.The International Maritime Organization’s (IMO) regulation, set to enter into force in 2020, has had owners perplexed amid growing pressure from the market to pick the less painful road to compliance.Namely, as of January 1, 2020, ships will be banned from burning any marine fuel with a sulphur content above 0.5 pct. The exception will be ships fitted with scrubbers.Aside to LSFO and scrubbers owners can opt for marine gas oil (MGO) or other alternative fuels, such as LNG, hydrogen and methanol.“The use of low-sulfur fuel is the intended solution for now, but we can’t rule out other options like scrubber installation and LNG related infrastructure,” Yang Ming Marine Transport Corporation confirmed to World Maritime News in a statement.The decision is being announced as Yang Ming seeks to renew its fleet with 20 newbuilding boxships. These include ten 2,800 TEU containerships to be ordered by Yang Ming and ten 11,000 TEU newbuilds chartered from Costamare and Shoei Kisen.The new ships will replace the vessels which are about to be off-hired or retired in the next 2 to 3 years.Separately, THE Alliance, which aside to Yang Ming includes Hapag-Lloyd and Japanese merged container lines under the Ocean Network Express (ONE) brand as its members, announced they were pulling one transpacific loop from their Trans Pacific – West Coast products.“The update of THE Alliance product will feature total six services in Asia/North America West Coast. The PS5 and PS8 services will conjugate into one combined service and cater for customers connecting the key ports of North China, Central China and North America gate ports,” a statement from the liner alliance said.The move is being announced on the back of a brewing trade war between the US and China.World Maritime News Stafflast_img read more

Two men go missing in northern BC near where body is found

first_imgThe Canadian PressNote to readers: This is a corrected story. A previous version incorrectly located the incident in northeastern B.C. It has been changed to northern B.C. DEASE LAKE, B.C. — RCMP in northern British Columbia are searching for two young Vancouver Island men whose vehicle was discovered on fire Friday in the same area where police say a body was found.Police said in a release Sunday night that officers investigating a vehicle fire on Highway 37 about 50 kilometres south of Dease Lake, B.C., received information that led them to discover a body at a highway pullout about two kilometres from the scene of the fire.They said the burned vehicle belonged to 19-year-old Kam McLeod and 18-year-old Bryer Schmegelsky, both of Port Alberni, B.C.According to police, the two were travelling through B.C. to Whitehorse in the Yukon to look for work and haven’t been in contact with their families for the past few days.They were last seen in Dease Lake on Thursday travelling in a red and grey Dodge pickup truck with a sleeping camper.Police said they were still working to identify the male body that was found, determine the cause of death, and whether there was any connection with the two missing men.Dease Lake is about 470 kilometres away from where 23-year-old Australian Lucas Fowler and his 24-year-old American girlfriend Chynna Deese were found murdered earlier in the week along the Alaska Highway near Liard Hot Springs.Police acknowledge in their Sunday release that “there are growing community concerns about the ongoing homicide investigations in northern B.C.”They add that investigators “are sharing information” about the cases, but don’t say whether any connection between the two has yet been made.last_img read more

Residential school survivor challenges Valcourt to review archival document destruction record

first_imgBy Jorge Barrera APTN National NewsAn Indian residential school survivor has issued a challenge to Aboriginal Affairs Minister Bernard Valcourt to review archival files that prove the government of Canada deliberately destroyed residential school documents.Valcourt denied the Canadian government ever destroyed residential school documents last Thursday during a House of Commons committee of the whole appearance.“If he wants, we can send him documentation on the department’s own, old letterhead verifying that it was factual and it was done,” said Michael Cachagee, who was four and-a-half years old when he was taken to residential school. “I challenge him on that publicly. We will send it to him just to refresh his memory.”Valcourt’s office did not return requests for comment on Cachagee’s offer.Valcourt faced questions during his committee of the whole appearance from NDP MP Romeo Saganash, who attended residential school and had a brother die at one of the institutions.“Have historical files pertinent to the Indian residential school system been destroyed by the government of Canada?” said Saganash, who also pressed the minister on whether any destruction occurred to avoid lawsuits.“To my knowledge, no,” said Valcourt. “I was not around in the 1940s, or the 1930s, or the 1920s. To my knowledge, no documents were deliberately destroyed simply to have them destroyed.”The archival record, however, counters that. While no proof exists that documents were ever destroyed over lawsuit concerns, files were pulped as a result of three major rounds of government-wide document purging directives issued between 1936 and 1973.Indian Affairs included residential school diaries, medical reports, building inspections, accident reports along with admission and discharge files among the lists of records it submitted for destruction.According to an internal analysis by Aboriginal Affairs previously obtained by APTN National News, Ottawa maintains no documents were ever deliberately destroyed. It was stated in the internal analysis that the federal government holds this position because of concerns an admission that documents were deliberately destroyed could expose the government to legal action. Ottawa maintains that fires and floods at the school destroyed records.Valcourt’s office has downplayed the analysis, saying it was done by a junior bureaucrat and did not reflect the government’s “view.” The minister’s office has never detailed the prevailing view.Indian residential school records are a key component for former residential school survivors to obtain common experience payments under the multi-billion dollar residential school settlement agreement.While the department maintains that no one who attended the schools have ever been denied a claim as a result of missing records, over 50,000 applicants have received less than they requested because they failed to prove they attended residential schools for the number of years they claimed.Cachagee, who suffered sexual and physical abuse during his time at three residential schools, said he lost a year’s worth of compensation as a result of missing records.“This whole thing is a fraud and it’s just an extension and all they do is they use the shelter of the House of Commons to lie about it,” said Cachagee, who used to head the National Residential School Survivors Society.NDP Aboriginal affairs critic Jean Crowder said Valcourt needs to come clean about what his department is telling him about the issue.“If the minister is truly not aware that documents were not destroyed, which would seem unbelievable, then he is either incredibly incompetent or he is misleading the public,” said Crowder. “If his high level bureaucrats are briefing him on something that is counter to what is in the public domain then he doesn’t have control of his department.”jbarera@aptn.ca@JorgeBarreralast_img read more

Nurses to Organize Strikes in Protest of Government Disregard

By Mohammed Amine BenabouRabat – Nurses are planning to stage three nationwide strikes starting next week. They decided to go on a weekly strike for the next three weeks, March 13, 21, and 28.In a meeting organized by the Movement of Nurses and Health Technicians in Morocco (MITSAM) on Saturday, March 2, nurses outlined the details of their strike, which they say is in response to the Ministry of Health’s reluctance to take their demands seriously. The nurses are calling for “equality in compensation for occupational hazards, revision of the unjust conditions for promotion, justice for victims, setting up a job and competency framework, and the integration of unemployed nurses into the public sector.” Afaf Elam, a member of MITSAM’s national committee of media and communication, said in a statement, “If our demands are disregarded, we will stage a 24-hour nationwide strike on April 16-17 along with a march in the capital.” She clarified that the strike will involve all hospital staff except for emergency departments and intensive care units. Despite previous strikes carried out throughout 2018 up to today, Elam stated, nurses find themselves compelled to engage in more strikes, which are detrimental to patients, because the government “has been inattentive to our demands.”In December 2018, police arrested a nurse for alleged infant negligence and subsequent death. The nurse served one month in prison and was released on bail early this year.MITSAM ascribed the negligence to the absence of specialists, saying the hospital did not have a pediatrician or pharmacist, amid a severe shortage of human resources.In a 2010 report, the World Health Organization (WHO) stated that it found in 2006 that Morocco was “among the countries that remain extremely vulnerable to the exodus of health care professionals to other countries.”According to the WHO, in 2007, “the number of medical, nursing, and paramedical staff providing direct care to patients was well below the critical threshold of 2.3 health care providers for every 1,000 inhabitants,” which is “necessary to assure essential care,” especially in relation to the attainment of the Millennium Development Goals set by the United Nations in 2000. read more

Comedian leads presidential polling in Ukraine

KIEV, Ukraine — A comedian who’s never held political office tops the public opinion polls ahead of Ukraine’s presidential election, but even he appears to be falling far short of enough support to win in the first round.Ukrainians on Sunday will choose from among 39 candidates for a president they hope can guide the country of 42 million out of troubles including endemic corruption, a seemingly intractable war with Russia-backed separatists in the country’s east and a struggling economy.President Petro Poroshenko is seeking another term, but a poll released Friday by the Kyiv International Institute of Sociology showed him with the support of just 13.7 per cent of the voters.Volodymyr Zelenskiy, who shot to national prominence by playing the role of the president in a television comedy, topped the poll at 20.9 per cent.The Associated Press read more

DR Congo Security Council discusses key challenges and risks in an election

18 May 2011The Security Council today called for urgent steps to strengthen institutions in the Democratic Republic of the Congo (DRC) and called on the country’s Government to ensure that general elections slated for late this year are inclusive, transparent and peaceful. In a presidential statement issued following its discussion on the DRC, the Council said judicial reform and support for domestic courts will ensure the rule of law and strengthen the fight against impunity.“In this regard, the Council notes the interest of the Congolese authorities for establishing specialized mixed courts to address serious violations of international humanitarian and human rights law, complemented by their existing cooperation with the International Criminal Court,” the Council said.The 15-member panel urged the UN peacekeeping mission in the DRC (MONUSCO) and other international partners to support Congolese Government to restore basic services, including access to justice, roads, health care and education services, as wells as security throughout the country, and particularly in conflict-affected areas.Earlier, Secretary-General Ban Ki-moon stressed that the forthcoming elections must be transparent, credible, peaceful and secure to ease tensions and build transparent and accountable institutions.Presidential and legislative polls are scheduled for 28 November, with provincial and local polls following thereafter.“We must do our utmost to ensure that violence does not break out before, during, or after the elections. We have invested much – and there is much to lose,” Mr. Ban told the Council.He said MONUSCO will continue to provide logistical and technical support to the electoral process, for which the mission will require additional resources.The Council noted that the overall peace and security situation in the DRC had improved, and acknowledged the results of actions taken by the Government to address the threat posed by illegal foreign and local armed groups, particularly the Forces Démocratiques de Libération du Rwanda (FDLR).Significant security challenges, however, remained, in North Kivu, South Kivu and Orientale provinces.The Council called upon the Congolese authorities to “swiftly adopt the necessary legal framework and implement their long-term vision for the role and structure of the army and police, and strongly encourages MONUSCO and international partners to provide coordinated support for these reforms.”The Council reiterated its deep concern over persistent high levels of violence, especially sexual assaults, and other human rights abuses against civilians, including women and children.Mr. Ban welcomed the Government’s increased leadership in addressing sexual violence, including the fight against impunity, which has entailed strengthening the military justice system and prosecuting some of those accused of sexual and gender-based violence and other crimes.“We must ensure that the victims of sexual violence receive the proper attention and care. Pursuant to Security Council resolution 1888, we have deployed a team of experts that is working with national authorities to strengthen the rule of law,” he added.The presidential statement underlined the importance of economic development in DRC to facilitate long-term stability. It stressed that special attention should be given to women’s empowerment and economic participation, job creation for youth, and reintegration of ex-combatants. It also underlined the need for further progress in ensuring that trade in mineral resources is founded on sound economic governance practices, and is transparent, fair and legal.Commenting on economic recovery, Mr. Ban said he was encouraged by the DRC’s efforts to combat the illegal exploitation of natural resources, including through regional initiatives.“These and other steps can support the DRC’s efforts to prevent acts that drive conflict and deprive the country of vital revenues,” he added.In his address to the Council, DRC’s Minister for International and Regional Cooperation Raymond Tshibanda said the improvement of the security situation in his country over the past two years is noteworthy.“Significant progress has indeed been made in terms of the reduction of threats against the safety of the people and the improvement of conditions for the Government to take charge of security,” said Mr. Tshibanda. read more

Trees speak out in UN writing competition to save forests

12 August 2011Two teenagers’ powerful pleas from the imagined standpoint of a tree to save the world’s forests beat out two million competitors to win gold medals today in the United Nations International Letter-Writing Competition for Young People. Two teenagers’ powerful pleas from the imagined standpoint of a tree to save the world’s forests beat out two million competitors to win gold medals today in the United Nations International Letter-Writing Competition for Young People. Charlée Gittens from Barbados, writing as a great oak in Guyana’s Windsor Forest, and 13-year-old Wang Sa from China, in the voice of an observant small tree ‘prepared to care for humanity,’ were declared victors in the 40th UN Universal Postal Union (UPU) competition, which this year marked the International Year of Forests by asking young people to imagine themselves as a tree writing a letter to someone to explain why it is important to protect forests. “Despite living in an increasingly digital age, the more than 2 million often hand-written letters the competition generates worldwide annually shows the tremendous value of the written word,” UPU director general Edouard Dayan said of the competition, which is open to youngsters up to the age of 15. “The UPU is pleased that its 40-year-old competition continues to foster an appreciation for the art of letter-writing, encouraging young people to express their deepest and most insightful thoughts on topics that concern us all, while teaching them the importance of proper addressing.” The international jury called the Barbadian entry “a powerful, personal and touching composition dealing with the issue in a very global manner. Comparing the plight of forests to some of the world’s great crises sends a strong message about the importance of protecting forests.” The jury called China’s entry “a well crafted and whimsical composition. Using a parable of two villages to tackle the theme, the writer does an excellent job of bringing readers into the story in a way that people are able to relate to it.” This is the first time that Barbados and the fifth time that China has won top prize. Grenada’s Jonathan Andrew, 14, won the silver medal for a “well handled and educational” presentation of the benefits of forests, while Botswana’s Charlene Tiagae, 15, was awarded bronze for “a delightful and personal composition explaining the benefits of the many plants and trees found in forests and why they need to be protected. The writer brings in lovely references about how some cultures perceive or depend on plants and trees.” The jury consisted of Jan McAlpine, director of the UN Forum on Forests Secretariat; Jean-Paul Paddack, director of the network initiatives support unit; Daniel Shaw, head of communication at the International Union for the Conservation of Nature (IUCN), and Jean-François Thivet, philately expert at the UPU International Bureau and a passionate collector of forest stamps. Next year’s theme, marking the London 2012 Olympics, asks youngsters to “write a letter to an athlete or sports figure you admire to explain what the Olympic Games mean to you.” read more

Protecting human rights during conflict one of worlds greatest challenges UN official

“The protracted violence is an immediate reminder that the prevention of conflict and the protection of human rights in times of conflict remain among the most daunting challenges for the international community,” the UN High Commissioner for Human Rights, Navi Pillay, told the General Assembly in New York.“Outright disrespect for international human rights and humanitarian law, let alone for human life, is an anachronism which cannot be tolerated. The UN must act to uphold the rule of law and protect human rights,” she added during her annual report on the work of the Office of the UN High Commissioner for Human Rights (OHCHR).In particular, Ms. Pillay urged States to take urgent and effective measures to protect the Syrian people. More than 20,000 people, mostly civilians, have died in Syria since the uprising against the regime of President Bashar al-Assad began some 20 months ago. A further 2.5 million people urgently need humanitarian aid, and more than 340,000 have crossed the border to neighbouring countries, according to UN estimates.“There is no doubt that every Security Council member wishes to see an end to the ever-deepening conflict in Syria and to the violence affecting civilians,” Ms. Pillay said. “While taking into account important political concerns, it is urgent to find ways to avert the massive loss of civilians and human rights violations.”During her presentation, Ms. Pillay underscored that the challenge of addressing crises and protecting human rights has grown due to organized crime, terrorism, the proliferation of weapons and the exploitation of natural resources – all developing at a faster pace.While she acknowledged that much remains to be done to ensure human rights are respected all over the world, Ms. Pillay also noted there have been developments that indicate an enhanced attention to human rights in various countries. For example, OHCHR now has a field presence in 57 countries, and human rights advisers are working with governments to mainstream human rights. OHCHR has also expanded its technical cooperation considerably.In addition, OHCHR has consistently supported the Geneva-based Human Rights Council, which has, over the past two years, steadily addressed urgent situations and mandated commissions of inquiry and fact-finding missions to places where there have been reports of human rights violations, including Syria.The UN human rights chief also highlighted the work of her office with respect to development, the rule of law, democracy, and against all forms of discrimination.“The growing recognition of the centrality of human rights in the peace, security, development and humanitarian agendas, and trust in OHCHR is very rewarding,” Ms. Pillay noted. However, she warned that financial constraints are limiting the resources required to support her office’s mandated activities. “While we continue to endeavour to fulfil such work, without sufficient resources, we are being compelled to do less with less,” the UN official said, and called on the General Assembly to renew its commitment to support OHCHR and maintain its momentum to promote and protect human rights all over the world. read more

Ban meets leaders of Kosovo and Serbia on sidelines of General Assembly

‹ › During those discussions, Mr. Ban commended Serbia for the steps it had taken in the context of the EU-facilitated dialogue and expressed “confidence that the agreements reached would improve the lives of all in Kosovo,” according to a UN spokesperson. Mr. Ban reiterated UN readiness to support reconciliation in the Western Balkans region. According to his spokesperson, Mr. Ban also expressed appreciation for Serbia’s important contribution to UN peace operations and its continued cooperation with the International Criminal Tribunal for the former Yugoslavia (ICTY). The ICTY, which marked the 20th anniversary of its work this summer, is tasked by the Security Council with trying those responsible for the worst war crimes and breaches of international humanitarian law committed during the various conflicts in the former Yugoslavia in the 1990s. Since its inception, the court has indicted 161 persons. Only four trials concerning core statutory crimes remain to be completed. Three will be completed according to the schedule and one case which was originally meant to be completed at the end of December 2014 is now anticipated to be completed by July 2015. Secretary-General Ban Ki-moon (right) meets with Hashim Thaçi, Representative of the Kosovo authorities. UN Photo/Amanda Voisard The current situation in Kosovo and the ongoing Belgrade-Pristina dialogue topped discussions today as Secretary-General Ban Ki-moon met with Hashim Thaçi, Representative of the Kosovo Authorities, and with Serbian President Tomislav Nikolic. Speaking at the United Nations Headquarters in New York ahead of the high-level General Assembly debate, Mr. Ban stressed the importance of close cooperation with the UN Interim Administration Mission in Kosovo (UNMIK) and other international presences for the benefit of the “normalisation” and confidence-building between Kosovo and Serbia. In a readout from his meeting with Mr. Thaçi, his spokesperson said that Mr. Ban commended Kosovo leadership for the historic progress achieved in the European Union-facilitated dialogue, in particular the landmark Agreement of 19 April 2013. The Agreement was brokered in Brussels by the European Union High Representative for Foreign Affairs and Security Policy, Catherine Ashton, with whom Mr. Ban also met today. Among its provisions is an agreement to hold local elections this year in municipalities of northern Kosovo with assistance from the Organization for Security and Co-operation in Europe (OSCE). Mr. Ban said in light of the 3 November elections, he encouraged “further constructive engagement” between Pristina and Belgrade to ensure Kosovo Serb participation. The ongoing Belgrade-Pristina dialogue and the upcoming polls were also the focus of Mr. Ban’s meeting with President Nikolic. Secretary-General Ban Ki-moon (right) meets with President Tomislav Nikolic of the Republic of Serbia. UN Photo/Eskinder Debebe read more

Attacks on health care and medical personnel in crises occur with alarming

According to the report, Attacks on Health Care: Prevent, Protect, Provide, over the two-year period from January 2014 to December 2015, there were 594 reported attacks on health care that resulted in 959 deaths and 1,561 injuries in 19 countries with emergencies. The most disturbing challenge for health care providers during emergencies is when they themselves are the victims of attacks – real or threatened, targeted or indiscriminate, the report emphasized. “Yet, we witness with alarming frequency a lack of respect for the sanctity of health care, for the right to health care, and for international humanitarian law: patients are shot in their hospital beds, medical personnel are threatened, intimidated or attacked, hospitals are bombed,’ WHO said.Such attacks not only endanger health care providers; they also deprive people of urgently needed care when they need it most. And while the consequences of such attacks are as yet largely undocumented, they are presumed to be significant – negatively affecting short-term health care delivery as well as the longer-term health and well-being of affected populations, health systems, the health workforce, and ultimately our global public health goals. More than half of the attacks were against health-care facilities and another quarter of the attacks were against health-care workers. Sixty-two per cent of the attacks were reported to have intentionally targeted health care, the report found. All equipment and facilities at the Bentiu Hospital facility in South Sudan were deliberately destroyed in April 2014, including this incubator intended to help premature newborn babies. Photo: WHO/G. Novelo In a press release, WHO highlighted that it collaborates closely with others to better understand the problem, bring attention to the issue, and find solutions that can prevent attacks; protect health facilities, workers, transport and supplies; and ensure the continued provision of health care despite such attacks. Noting that currently there is no publicly available source of consolidated information on attacks on health care in emergencies, the agency said the report is a first attempt to consolidate and analyze the data available from open sources. While the data are not comprehensive, the findings shed light on the severity and frequency of the problem, WHO said. Even one attack on health care is one too many. Therefore, the number of reported attacks reflected in this report is tragic, said WHO, underscoring that the high tolls of death and injury to our health colleagues and the inevitable impact on health service delivery call for greater action.The main conclusions to be drawn from the analysis of the available data are the following: standardize information; document health impact;establish global repository;advocate at all levels; and document and apply good practice to reduce risk. read more

Womens hockey Ohio State goalie Kassidy Sauve looks to continue success in

Ohio State then-redshirt sophomore goaltender Kassidy Sauve stares down a rolling puck against St. Cloud State on Feb. 4 at the OSU Ice Rink. Credit: Magee Sprague | Lantern reporterOhio State redshirt junior goalie Kassidy Sauve has had plenty of downs in her hockey career, but this upcoming season looks to be filled with more ups than ever.Sauve is entering into her third season as the goaltender for Ohio State’s women’s hockey team, and while the 14-17-5 record she posted last season might seem like nothing special, her sophomore season quickly became one for the record books, and one with a tale of redemption.Sauve underwent a double hip surgery, causing her to miss half her freshman season and take a medical redshirt during the 2015-16 campaign While the 581 days Sauve missed were never easy, Sauve said that her parents were a major factor in her recovery.“There were a lot of times where I thought that I didn’t even know if I could do this, I didn’t know if I can come back from injuries this severe, but knowing that my parents thought I could do it… They were behind me all the way,” Sauve said.Then-freshman goaltender Kassidy Sauve (32) defends the net during a game against Mercyhurst on Nov. 11 at the OSU Ice Rink. She had 43 saves on Saturday.Credit: Lantern File PhotoIn her first season back from the injury, Sauve posted a .942 save percentage, led the NCAA in saves with 1,135 and brought her career shutout total to 12. The save percentage and save totals are both single-season Ohio State records, while the career shutouts are tied for the all-time school record.“It was easy to come back in a way because I had so much to prove,” Sauve said. “There were a lot of people saying that I wasn’t going to be able to make the comeback and that I wasn’t going to be able to play, and I just wanted to prove to myself and prove to other people that an injury wasn’t going to stop me.”Off the ice, Sauve makes an impact, as well.“[Sauve]’s automatically, without a ‘C’ on her chest, a leader on the team just because of the talent that she brings on the ice, and because of that, people are listening to her,” head coach Nadine Muzerall said. “When you’re such a standout in your field, like for her being an All-American goalie, you just automatically ooze that into the locker room, people are looking to you, so any time you talk people are listening.”Sauve’s accolades did not go unnoticed, as this offseason she was invited to Team Canada’s summer strength and conditioning camp. She was also named preseason player of the year in the Western Collegiate Hockey Association.“Going to Calgary, where the Olympic center is for the hockey teams, it’s always a really exciting experience, I get chills every time I walk into that building,” Sauve said.Sauve, who was born in Whitby, Ontario, hopes to be a part of the Olympic program in the near future.While last year was a breakout return for Sauve, and one that made her a second-team All-American, Muzerall said she is looking even better coming into this season.“[Sauve] really was dialed in and disciplined this summer,” Muzerall said. “She has matured a lot as a player, and her mental toughness has improved immensely since the beginning of last year, and as a goalie that goes a long way.”Sauve said she knows she can still improve, and also understands there could be added pressure on her to perform in this upcoming season.“I think pressure is a privilege,” Sauve said. “I really like pressure, those games are the easiest games to win and if this whole season is considered a pressure season, then I am comfortable with it.” read more

Water Management in Mining

first_imgKennecott Eagle Minerals has teamed up with Veolia to treat mine water to meet and exceed water quality standards set by its mining permitsUsing the same water over and over again is one way mine’s conserve water and manage its emissions. However, Raymond Philippe, Chile Water Director and Hubert Fleming, Global Director Water at Hatch, writing recently in WaterWorld note one of the major disadvantages of recirculating and recycling water to be “the possible build-up of contaminants in the water balance. If less fresh water is used and instead more contaminated water is being reused, there will be a higher risk of contaminant retention in the system that may have various negative chemical effects, such as corrosion, scale formation, modification of metallurgical chemistry and so forth. As a result the mine may start suffering economic consequences due to less plant availability, higher maintenance requirements or even less metallurgical recovery and production.“Although huge savings may be obtained in water supply requirements, this has to be offset against possible bleed stream requirements due to a build-up of contaminants in the process water circuit to avoid these downsides. This may especially be the case in mineral processing systems that consider the use of poor quality water such as direct seawater or brackish well water.”They also note that desalinated water is proving a vital source but with mines in Chile and Peru, for example, up to 200 km from the coastline, water transport and networks are a major consideration.  Most of the large number of Latin American projects will be executed in very challenging geographical settings, often high up in the Andes Mountains. It is the search for sustainable water sources to support both existing and new mineral processing needs that will prove even more challenging for these projects, and others in places like Western Australia, than electricity supply.In many places, mines are competing for the same resources as other users, putting at risk any long-term project development depending on the same stretched hydrological resources.  Conversely, and even in semi-arid regions, during part of the year mining operations may experience a surplus of water in their operations. In places like the Andes, wet seasons or snow and ice melt may enter the mining operations: mine pits, tailings ponds, waste dumps and leach pads. As a result, some of this water may have to be discharged temporarily to the environment. And, environmental discharge legislation is becoming more stringent for mining companies. “Peru and Chile, for example, have implemented some of the strictest environmental effluent discharge legislations worldwide, with some critical parameters required to meet standards even below potable water,” Philippe and Fleming explain.Environment and community“In most cases, the use of seawater requires significant investments of marine structures, desalination plants, energy supply systems and moreover very complex water conveyance systems.” They also note the “local political and economic challenges. These include local geography, community relations, environmental impacts, and energy requirements, for the implementation of large seawater treatment and conveyance systems. As such, there is a limit to alternative designs that can be considered for this type of coastal infrastructure projects. In order to achieve significant savings in investment and operational costs, the design of water supply projects must also involve the development of an accurate water balance. This is so that the seawater treatment plants, pipelines, and pumping stations, are not over (or under) designed. Project logistics must also reflect progressive change in the water demand and may need to consider a modular, expandable design.“Although the majority of the seawater supply projects are being identified as seawater desalination projects, in reality they are a result of a complex integration of marine works, a desalination treatment system combined with a high pressure conveyance pipeline and an energy transmission project. In practice, mining companies consider the project as a whole, and require a complete supply solution. This may result in a disconnect with the actual market because of the limited size of the desalination plant compared to the overall project.“Furthermore, it is not always logical that desalination OEM providers would manage the complete project, as they might in more conventional public sector desalination projects around the world.  Other important aspects to consider for design and construction in a mining environment, besides a required heavy duty design, are the very demanding quality, health and safety demands that the mining industry imposes. These must be reflected both in design as well as in project execution.“Consequences and costs are sometimes underestimated by process and equipment providers and construction companies, especially when their background experience is mostly in municipal potable and wastewater plants. The entire design, specification and procurement process is unique for the mining industry.  The high energy demand required for conveying the water, due to the great distances and elevations involved, and the availability of an energy supply source represent a significant challenge. Hence, a strong focus on optimisation is crucial to delivering a successful seawater treatment and conveyance project in northern Chile, for example. Previous design experience is fundamental in developing and delivering successful water supply projects, considering the large number of issues, various aspects and interactions encountered during design that must be taken into account.”They go on to explain that the use of untreated seawater rather than desalinated water “is generally a trade off between capital and operating costs. That operating cost must include the impact of seawater on operations of the mine as well, including effect on metallurgy of mine equipment, as well as efficiency of the mining or beneficiation or ore recovery processing plant. There is often a substantial difference in benefits associated with comparing parameters as metallurgical recovery and even effective production time due to plant availability between seawater and desalinated water.Low-Energy treatment process“Direct cost for desalinated seawater supply, depending on altitude and distance from the coast, and price of energy, will vary between $1 and $4/m3. This cost is evaluated against the benefits of water to mine production. In the case of copper mining, desalinated seawater supply cost may represent 3% to 20% of total direct operational costs. It’s clear to see how water becomes one of the most impacting consumables. In addition, with lower quality metal contents in available mineral resources, net higher water consumption per pound of metal produced is required, further driving up water costs as a percent of total cost of operations.”South American mines are looking at strategies to improve water usage, especially focusing on better water recycling rates.  Processes are being optimised to improve water return from tailings storage facilities (TSF), to avoid water losses due to evaporation and infiltration, and to avoid generation of effluents.  A concentrator with a conventional TSF, for example, may retain up to 50% more water than newer developments such as thickened tailings or paste technology.Philippe and Fleming stress the risks associated with water usage optimisation “that must be evaluated, which are not always understood or even considered when aiming at low make-up water supply. These risks can only be quantified through an analysis of both the quantitative water balance as well as a qualitative water balance.“Mineral processing sites may use various feed water qualities, to which reagents are being added to the process streams, and may even suffer from geochemical processes like acid mine drainage generation. As a result, generally there is imbalance between the water quantity and quality distributions.“One of the major disadvantages of recirculating and recycling water is the possible build-up of contaminants in the water balance. If less fresh water is used and instead more contaminated water is being reused, there will be a higher risk of contaminant retention in the system that may have various negative chemical effects, such as corrosion, scale formation, modification of metallurgical chemistry and so forth. As a result the mine site may start suffering economical consequences due to less plant availability, higher maintenance requirements or even less metallurgical recovery and production.“Although huge savings may be obtained in water supply requirements, this has to be offset against possible bleed stream requirements due to a build-up of contaminants in the process water circuit to avoid these downsides. This may especially be the case in mineral processing systems that consider the use of poor quality water such as direct seawater or brackish well water.”Last year Kennecott Eagle Minerals awarded Veolia Water Solutions & Technologies a contract for the wastewater treatment plant at its Eagle mine located in Michigan’s Upper Peninsula. This will be the only primary nickel mine operating in the USA and is expected to produce some 300 Mlb of nickel and 250 Mlb of copper over the life of the mine. Kennecott Eagle Minerals aims to protect the surrounding environment including groundwater, streams, rivers and lakes and has teamed up with Veolia Water to treat the mine water to meet and exceed water quality standards set by its mining permits. Veolia Water’s treatment solutions include the patented OPUS® high recovery membrane process and Liquid Evaporation and Distillation (LED) evaporators and crystallisers for brine management to achieve Zero Liquid Waste Discharge at the mine site.The wastewater treatment process includes precipitation softening and clarification, filtration, ion exchange softening and a final two pass reverse osmosis (RO) polishing system. The discharge streams from this patented wastewater treatment process include treated effluent water, metals precipitation sludge, ion exchange regenerant and RO concentrate. The treated effluent water will be suitable for reuse in the mining process or to release back into the groundwater by a treated water infiltration system. The ion exchange regenerant and RO concentrate liquid wastes will then be sent to the evaporator and crystalliser system and converted to solids which will be disposed of off-site as a non-hazardous solid waste.The system is designed to treat 100 to 500 gallons per minute (0.72 million gallons per day) of mine water and began operations late in 2011, started up and commissioned by Veolia Water.Energy Resources Australia (ERA) has selected brine concentrator technology from Veolia Water to treat and reduce process water inventory from its Ranger uranium mine in Australia’s Northern Territory. This project is a critical part of ERA’s overall water management strategy and environmental protection initiatives.The brine concentrator will be provided by subsidiary HPD and will treat approximately 1,830 mega litres of water annually (1.3 million gallons per day).  ERA considers this technology a proven, long-term solution to minimise the environmental impact of operations and significantly reduce process water inventory at Ranger. The brine concentrator uses thermal energy to evaporate water, which produces clean distillate that will meet strict water quality requirements for release into ERA’s constructed wetlands system.HPD was selected for this project because of its extensive experience in volume reduction applications, the ability to meet future needs of the mine, and testing capabilities. This includes shipment of a pilot-scale brine concentrator unit to Australia for demonstration of the process.  Commissioning of the brine concentrator plant is expected to be completed in mid-2013.The contract for the design and supply of a 1,000 m³/d effluent treatment plant to serve Trevali Mining’s Halfmile zinc-lead-silver-copper mine in New Brunswick has been awarded to Veolia Water Solutions & Technologies Canada.  The new zinc-lead-silver-copper mine is situated 60 km south of Bathurst and commenced production in January 2012. The scope of this fast-track design/build project includes the entire treatment plant as well as the construction of the building. The treatment plant will provide precipitation, decantation and filtration plus pH correction to provide a treated mine effluent that meets the Canadian Council of Ministers of the Environment (CCME) Water Quality Guidelines for the Protection of Aquatic Life.“Trevali is pleased to be working with Veolia in providing a compact turnkey water treatment solution for the Halfmile mining project,” said Paul Keller, Trevali’s Vice President of Operations. “Having the peace of mind of working with a major solution provider allows the company personnel to focus on mine development and production activities.” The plant incorporates metals precipitation using the ACTIFLO TURBO, a high-rate, small footprint clarification process. The ACTIFLO process uses sand-ballasted settling and a TURBOMIX draft tube reactor that allows for a very compact design with high overflow rates and short detention times. This design enables the unit to perform well under dynamically changing flow rates without impacting final effluent quality. By combining the proprietary Hydrex reagent to magnesium hydroxide, the solids produced in the ACTIFLO unit will be larger than sodium sulphide, which facilitates downstream filtration.After clarification, the water undergoes sand filtration to remove any remaining solids, followed by pH correction. Also, the instrumentation and automation package permits remote monitoring of the entire water treatment plant, which is a major benefit for the operation of the plant. The building will be a 15 m x 22 m steel building with all ancillary services, including a 2 t overhead crane and water quality laboratory. The plant is currently in the final construction phase. Trevali has been constructing the Halfmile project civil works since March 2011, and commenced production of the water treatment plant in January 2012, with a planned production ramp-up to a rate of 2,000 t/d.Low-energy treatmentMWH has developed a low-energy process to treat acidic, metalladen water at the Holden mineDan Dupon and his fellow engineers at MWH have developed a low-energy process for treating acidic, metal-laden water at the Holden mine in the remote reaches of the Northern Cascades of Washington State, USA.  Conventional mine water treatment methods could not be seriously considered for the site because they require more energy than is available. A remote site, the inactive Holden mine is not reached by any utilities, roads or line power. Thus, the unique conditions presented required a more creative approach to water treatment.Operated during the 1930s, 40s, and 50s, the underground operation left large tailing dumps located adjacent to Railroad Creek (the main drainage for the valley), a dilapidated mill site, waste piles, and a small village that housed the miners and their families. The mine is located in one of the many steep valleys along glacial Lake Chelan and the only access to the site is by boat. The small village is now an international summer retreat centre and is supported by a micro-hydropower plant located on a nearby creek. Power produced by the plant is limited by low river flows in the winter months, requiring the village to restrict its population seasonally.The mine site is now undergoing remediation to address the waste and tailings piles as well as contaminated water issues. A major part of the remediation activities involve collecting and treating impacted waters to control the discharge of metals to Railroad Creek. The waters to be collected and treated include shallow ground water beneath the tailings piles, seeps, and drainage from the partially flooded underground mine workings. Metals concentrations in the treated effluent need to be very low, consistent with aquatic water quality criteria.The treatment approach defined in the project feasibility study identified two treatment systems, one for the mine workings flow and another for the shallow ground water. The limited available power meant that each of these systems would need to operate by gravity and be located in separate areas of the site. The total amount of water requiring treatment is predicted to be between 63 and 95 litres/s (1,000 and 1,500 gpm).Alkalinity would be added to a cascading stream to neutralise acidity and oxidise iron.  The process of neutralisation would cause aluminium, copper, cadmium, iron, and zinc to precipitate as solids which would then accumulate in settling ponds. Overflow from the ponds would then be treated further, to remove suspended particles, through either a large sand filter system or a surface wetland. This approach was predicated on the assumption that gravity would be the only driver of flow.MWH identified several potential problems with the proposed approach: (1) the method of alkalinity addition would be inefficient and unable to control solution pH, (2) the method of aeration would be insufficient for complete oxidation of ferrous iron, and (3) separate treatment of the two waters would not produce the most effective removal of the metals. MWH revised the approach to compensate for these potential problems.The first change was to combine the flows into a single stream to take advantage of the high iron concentration in the shallow groundwater (dissolved iron was undetectable in the mine workings water). Combining the flows would allow copper and cadmium in the mine workings water to react with the elevated iron of the shallow ground water, yielding low dissolved concentrations. The second change took advantage of the elevation of the mine workings water, allowing it to be delivered to the plant location under pressure. This pressure was used to drive a jet eductor pump for efficient addition of alkalinity, thus conserving chemicals and providing adequate process control. Finally, MWH selected a low-profile, weir cascade system to aerate and oxidise the elevated ferrous iron (>200 mg/litre) present in the raw water. he cascade aerator system maximises oxygen transfer through increased water surface area and turbulent mixing in a relatively small unit.This revised approach was then tested on-site in an MWH design pilot-scale system. A test plan was developed to appropriately size equipment, identify the best target pH for optimum removal of metals, and evaluate sand filtration methods. Results of the test work have been developed into full-scale design criteria.  The performance of this low-energy process meets or exceeds that of conventional mechanical systems and is capable of meeting expected discharge criteria, MWH says. Design of the full-scale system is slated for 2012.MWH was able to overcome the challenges and develop an effective treatment process capable of handling up to 95 litres/s of flow that is expected to consume less than 10 kW of power.In other treatment news, speciality resins company Purolite has published an Iphone/Ipad App of useful resources related to water treatment, especially ion exchange. The free app can be downloaded from the App store, where it can be readily found by searching for “Purolite”.  It has unit conversion calculators, a periodic table of elements, tables for screen size equivalents and regenerant strength plus other resources. “Our goal is to help our customers find the information they need as quickly and easily as possible. Much of the information in this App is on our website,” said Gary Thundercliffe, Global Marketing Manager for Purolite.Purolite products are also used in the recovery of uranium, gold, molybdenum, rhenium, nickel, copper and other valuable metals. Purolite has a range of products tailored for all methods of industrial hydrometallurgy.  Such methods include sulphuric acid and bicarbonate leaching of uranium, metals recovery from clarified solutions, either heap or in-situ leaching (ISL) operations; and uranium, gold and basic non-ferrous metals sorption from pulps at resin-in-pulp and resin-in-leach operations.Arsenic removalPiia Suvio, Product and Process Solution Specialist, and colleagues at Outotec are working on methods for removing arsenic from metallurgical process streams. They report that “being very abundant in the earth’s crust, arsenic is typically encountered in the processing of gold and copper ores and concentrates, where it is typically associated with minerals such as arsenopyrite and enargite.“Depending on the metallurgical process in question and the state in which As occurs in the processed mineral, As can either be in trivalent  (As3+) or pentavalent (As5+) form. In aqueous solutions within metallurgical applications arsenic is typically present in acidic form as either H3AsO3 or H3AsO4.”Arsenic-rich liquids require treatment prior to discharge or reuse as process water. The most typical ways considered for removing As from mining and metallurgical effluents industry include:■ Calcium arsenate precipitation (Ca3(AsO4)2)■ Calcium arsenite precipitation (Ca3(AsO3)2)■ Basic ferric arsenate precipitation (FeAsO4 *xFe(OH)3)■ Scorodite precipitation (FeAsO4 2H2O)■ Arsenic precipitation as sulfides (As2S3)■ Adsorption■ Coagulation■ Ion exchange■ Membrane separation■ Biological precipitation.Arsenic precipitation with lime is to date perhaps the most straightforward and costeffective means of removing arsenic from solution.  However, the stability of the generated calcium arsenite or arsenate sludges is poor. An effective alternative to lime precipitation is provided by ferric precipitation (Fe2 (SO4)3), a chemical process that generates ferric arsenate sludges, out of which the crystalline scrorodite or ferric arsenate dihydrate (FeAsO4 2H2O) is the most stable form. Precipitation of scorodite requires, however, highly controlled process conditions.Any precipitation-based process will benefit from advanced equipment technology and process design, but best results are achieved using customer and process-tailored equipment and process control, which allow stable, safe, reliable and cost efficient operation of the process.With correct process design significant benefits are obtained, including:■ Lower chemical consumption■ Less scaling = less maintenance■ Stable pH profile, allowing precipitation reactions to take place in the reactors and providing stable effluent■ High quality sludge with uniform chemical composition = long term safe storing of As residues■ High quality solid residue with minimum moisture = lower disposal costs and higher water retention■ Process effluent with low, residual As concentrations and low solids carry over.Lime can be used to precipitate arsenic out of solution in both, trivalent (arsenite) and pentavalent (arsenate) states, forming calcium arsenite or calcium arsenate, respectively. The precipitation of calcium arsenite Ca3(AsO3)2 is presented below.2 H3AsO3 + 3 Ca(OH)2 – Ca3(AsO3)2 + 6 H2ODepending very much on the way of operating the process, residual As concentration can reach levels between 1 mg/litre and 100 mg/litre when pH is raised above 10. The sludge so formed is typically a combination of gypsum, calcium arsenites/arsenates and heavy metal hydroxides.Ferric iron can be used to precipitate As out of solution. Depending on the precipitation conditions, either basic ferric arsenates (FeAsO4*xFe(OH)3) or crystalline scorodite (FeAsO4·2H2O) are formed.Typical iron dosing for basic ferric arsenate precipitation aims at Fe:As ratios between 4 and 10, whereas in scorodite precipitation the ratio is nearly stoichiometric (close to 1). High iron dosing typically allows lower residual As in effluent, but simultaneously increases the chemical costs and the amount of sludge produced.Depending on the way of operating the process, residual As concentration after precipitation with ferric iron can reach levels below 1 mg/litre. The produced solid residues are more stable than the respective calcium arsenite and arsenate precipitates. Depending on the Fe:As-ratio and precipitation process, the ferric arsenate precipitates pass the EPA TCLP test limit of 5 mg As/litre1.Atmospheric scorodite precipitation is carried out in three stages:■ Oxidation of arsenic■ Supersaturation controlled precipitation of scorodite■ PolishingComplete oxidation of trivalent arsenic (arsenous acid, H3AsO3) to pentavalent arsenic is completed prior to the precipitation stage, in order to ensure formation of arsenic acid (H3AsO4), which will further react with ferric ions. Oxidation of arsenic in the process is performed by means of hydrogen peroxide (H2O2). Scorodite precipitation takes place stepwise in a series of precipitation reactors with controlled pH. Slurry pH is adjusted by sodium hydroxide solution to ensure formation of pure crystalline scorodite. The reactions involved in the process are shown in these equations:H3AsO3(aq) + H2O2 (aq) –  H3AsO4(aq) + H2OH3AsO4(aq) + Fe3+(aq) + 2H2O – FeAsO4(H2O)2(s) + 3H+(aq)The process is complemented by a polishing stage by means of co-precipitation at elevated pH. Part of the sludge generated is recycled back to the process. Following the polishing stage, arsenic concentrations below 0.5 mg/litre are achieved.Suvio and colleagues conclude that “Precipitation processes play a major role in As removal from metallurgical process streams. For relatively simple and straightforward As removal processes like calcium arsenite precipitation, advanced process and reactor technology can provide possibilities especially for decreasing reagent consumption and maximising water recovery through efficient solid dewatering. For more complex and sensitive processes, like the ambient scorodite precipitation process, sophisticated process control allows careful step wise processing that produces pure and stable crystalline scorodite.Pump specificationPioneer Prime PP64S17-75 kW mine dewatering pump operating on a remote VFD pumping 280 m3/h through a 1.2 km pipeline at 6.5 barSimon Ruffles, Managing Director of Pioneer Pump notes that “providing water to a mine is more than just about pump selection; it’s about understanding the design of the mine and its particular water requirements.”Most mines around the world handle water in the process of either removing it from a mineral source or in the processing of minerals. “Quite often the mine usually finds it has either too much or too little water and most commonly one or the other at the wrong time.In order to overcome the supply issues it is quite common for mines to use open storage lagoons (sometimes called ‘dams’) to store water for when needed, creating a buffer and allowing the mine to optimise its water resources. Some use old underground mines for storage and this has challenges in its own right.“Quite often these lagoons will be man made,” Ruffles continues, by the mine as part of the original consultant designed layout and one of the key aspects would be to stop recirculation of the water from the storage point back into the working area of the mines. This is commonly done by lining the excavation but also by placing the lagoons far way from the mines, sometimes as far as 2 km and quite often over challenging topographical conditions.“Any pump company should consider these points when specifying not only the pump but also the driver, whether it be an electric motor or a diesel engine driving the pump and from that, how best to utilise the equipment in order to minimise the costs of running the equipment and the environmental impact.“Pump companies quite often offer fixed speed solutions dictated by frequency of electric motors for example 1,500 rpm on a fixed speed four-pole motor or by an engine which in most cases is flat out due to lack of operator training, which leads to excessive power requirements and fuel burn and in the worst cases equipment damage due to cavitation.”Recent open-pit developments in Africa have however, he says, “used an alternative approach whereby mines are being offered electric driven pump sets which are often mounted on pontoons that are controlled by remote variable frequency drives (VFD) which are monitored and controlled by flow meters and pressure switches. This development has led to infinite control of the pumping application reducing power consumption thus reducing the lifetime costs of the projects particularly energy costs.“One such project has been completed where a 250 kW electric pump set was specified for a project where the water had to be pumped out of a lagoon at a flow rate of 400 m3/h. This generally would have called for 200 mm diameter pipe however, the distance required to pump was almost 1,500 m so careful consideration had to be given to friction losses in the system and thus the diameter of the pipework.“Pumping from the lagoon the water had to rise a static head of 150 m which was fine.  However, after reaching the crest it fell away 110 m which meant once the system was primed the actual static head was only 40 m. On this basis therefore the pump experienced the following conditions in each cycle of operation:1) Pump start, filling the line and rising 150 m of static head over a distance of 600 m in 300 m giving a total dynamic head of 165 m when one considers bends, entrance losses and an element of safety factor. To do this a self priming pump with a 525 mm impeller would have to run at 1,900 rpm or close to 65Hz through a VFD and would require 275 kW to complete the duty.2) Once the pumpage reached the crest of the mine wall and began to fall away, the static head reduced and the total dynamic head fell as well causing the pump to experience less pressure resistance thus allowing the pump to generate more flow, possibly too much flow and leading to cavitation.3) Once the pumping cycle is completed the pump would need to be shut down and this would now have to be undertaken in a controlled ramp down manner to ensure a minimum amount of water hammer which can destroy pipelines and pumps very quickly.“The most cost effective way around these three challenges is to use a variable speed drive. In the first cycle of filling the pipe, because the flow is starting from a static head of zero, any pump operating at the 1,900 rpm, required at the top of the mine would lead to excessive flow rates causing possible cavitation.  To control this, a flow meter in conjunction with a pressure switch would ramp the pump set up from a low speed of say 1,000 rpm through to 1,900 rpm over the entire cycle of the pipe filling on the rising leg.“This would mean that the motor could be designed to optimise the process where in the initial stages flow may be at 400-500 m3/h to allow for fast filling. Then as it reaches the top and the static head is maximised, flow may momentarily be allowed to drop to say 300 m3/h at 160 m (lower friction losses at lower flow rate) to allow the priming duty to be completed by a 250 kW motor rather than a 275 or 300 kW motor were the 400 m3/h process flow rate developed.“Once the pipe was full and flowing over the top of the mine wall and down the other side, static head would begin to be reduced and therefore the flow rate would naturally increase.  At this point the signals from the flow meter and pressure switch would signal for the motor to slow down again and continue to slow until such time it generated a duty point of the required 400 m3/h at a total dynamic head sufficient to overcome the 40 m of static, the friction losses of the said flow rate through the entire length of the pipework and any subsequently introduced losses such as additional static head that may occur as the pontoon mounted pump set would experience as the level of the lagoon went down.“The challenge of the application therefore is not necessarily selecting a pump set and system to achieve a duty point of 400 m3/h at say 65 m but to understand that in order to get to that point and being able to manage the safe delivery of water to the mine, the pump and systems including the driver control will experience a large range of conditions and if the equipment specifiers select equipment only for worst case scenarios (e.g. 400 m3/h at 165 m head) then the chances are they are over specifying the equipment causing increased capital and operational costs to the mine.“If there is a moral to this story then it is twofold, firstly to carefully look at the management of the water as soon as possible in the design of the mine and secondly to make sure that the chosen suppliers have the technical capability or desire to offer the most efficient solution, because there is always a huge difference between the cost of [for example] a 300 kW slurry pump being used for such a duty with a 50% hydraulic efficiency and a valve at the end of a line to control the system, and an 75% efficient water pump requiring only a 250 kW motor and variable speed drive, that may cost the same in terms of capital expenditure but over five years may well save the mine $175,000 of electricity – or the price of the pump set and VFD in the first place.”In another example of dewatering, Xylem has been working with Dannemora Mineral since May 2009 to pump water from the Swedish Dannemora mine, which is being re-opened, and ensure it remains water-free throughout the operation. Water had accumulated at a rate of 10 m/y in the main shaft and drifts since the mine was closed 20 years ago. The bottom of the main shaft is 620 m below ground; water had reached 323 m by 2007.Xylem designed a customised dewatering system and in May 2009, when the water level was at 311 m below ground, four parallel Vogel pump systems, each with a capacity of some 60 litres/s, hanging in 180 m long steel pipes, at levels of -480 m and -300 m, were installed.  Since then 3.4 million m3 of water have been drained from the mine.As well as the initial dewatering and drainage work, Xylem has designed, and is in the process of installing, a permanent system that will ensure the mine stays dry and in operation.  Lars Thoro, Consortium Manager with Xylem, said, “The permanent dewatering system consists of 12 Vogel and Flygt pumps which together remove 20 litres/s of water. The Flygt 2400 and Flygt 2630 pumps are ideal for this type of operation as they are specifically designed to withstand tough operating conditions. They are ideal for dewatering applications such as Dannemora, delivering highly consistent performances over a long period of time.”According to Xylem, special features unique to the Flygt brand of dewatering pumps such as Dura-SpinTM, a hydraulic system which minimises impeller wear; Spin-OutTM a system designed to prevent clogging and protect the outer seal and the K-Impeller, a hard iron impeller specifically designed for high efficiency and wear resistance, make the company the experts in mine dewatering.Thoro continued, “A great addition to the Dannemora dewatering operation is a Scada system which enables the operation to be monitored from above ground. A Flygt APP521 pump controller at each pump station manages operation of the pumps. This information is then communicated back to a computer system at ground level. This gives operators access to critical data from one location above ground allowing operators to monitor equipment, troubleshoot and identify trends, diagnose and resolve issues, quickly and easily. The end result is a pump station control system that provides ease of operation, flexibility and reliability, ensuring more uptime, greater energy savings and less operating and maintenance costs.”Pump efficiencyJohn Schulkins, Business Development Director at TAS Online points out that “pumps are at the heart of industry and consume 15% of the world’s electricity output. If the other machinery in industrial plants which is directly affected by pump efficiency is taken into account, this proportion rises to approximately 30%.“Due to neglect, poor design and, above all, lack of visibility of the efficiency of the system, much of this electricity is wasted – turned into heat, vibration and noise rather than producing throughput. Well managed and maintained pumps can drastically reduce overall energy consumption, but instead they continue to be overlooked.■ International studies show that pumps typically operate at low efficiency levels – often between 15% and 40% away from optimum■ Are very costly to run – electricity bills account for up to 90% of life cycle cost■ Tie up scarce skilled manpower in time, travel and avoidable maintenance■ Pump efficiency levels can be improved by an average of 20% when viewing the pump stand-alone■ If viewed as part of the overall process, efficiency savings between 30%-50% are possible by optimising the entire pumping system.The TAS PumpMonitor provides the technical and financial data required to cut excessive energy consumption from pumping systems. In addition to quantifying electricity wastage per unit pumped and analysing its causes, the data – fed from pump to desktop via the internet – identifies equipment failure before it manifests.  This facilitates relevant, timeous maintenance and saves man hours and costly production losses.Schulkins says “traditional condition monitoring is reactive – it only detects a problem once the pump has begun to destroy itself. One-off on-site pump testing is not a viable alternative to regular monitoring because it is costly, ties up manpower and only provides a snapshot of current operation, not a view of performance over time. TAS PumpMonitor is the only cost-effective, pro-active system enabling engineers and operators to accurately assess long-term pump performance from their office or control room.” It offers two options:■ Manual input of data derived from readings taken on-site at regular intervals using portable instrumentation. This is appropriate for smaller pumps in stable, low-wear systems and for initial system assessment. It is an effective low-cost option as no permanent instrumentation is required■ Real-time input of data from permanentlyinstalled instrumentation attached to each pump and transmitted off-site at frequent intervals. This is more expensive due to the cost of purchase and installation of instruments but amply justified where large pumps are consuming large amounts of electricity, where systems have fluctuating demand or where large pumps are pumping in parallelThe following data is required:■ For clear water – suction and discharge pressure and power absorbed – flow can be derived by PumpMonitor■ In addition, a flow meter is necessary for slurries, plus pump speed and specific gravity where these vary.TAS PumpMonitor compares current operation against the optimum duty defined by the tested current Pump Performance Curve, the most reliable source outlining a pump’s potential performance. Data is then analysed in numerous ways and wastage quantified, per unit pumped, in both electrical and financial terms and results delivered to the required personnel.It also classifies inefficiencies where savings can be made into three types – Wear, Duty and Volumetric. This distinction helps users identify the best corrective actions which, when implemented, result in savings throughout the system’s lifecycle.Among the many benefits this technology offers is to provide an accurate understanding of pump requirements in future system designs, eliminating the need for redundant capacity frequently built into pumping applications to account for unit failure. TAS PumpMonitor also identifies surplus units that could be better used elsewhere.TAS PumpMonitor integrates seamlessly into a plant’s existing communications infrastructure and to date applications have helped reduce short term operational pump electricity costs by between 10% and 15%. Long term savings are still being established and should be in the region of 15%-30%.New pumpsXylem says it “now boasts one of the most extensive portfolios of dewatering pumps on the market with the addition of three new sludge pumps to its flagship Flygt 2600 drainage range.” The company, which was spun off from ITT Corp in October 2011, specifically designed these versatile pumps (models 2620.280, 2630.280, and 2640.280) to meet customer demands for multi-purpose drainage pumps that can serve the evolving needs of mining and other markets. Available for rent or purchase the pumps have new features which are easy to install and service, reducing the total cost of ownership.The portable Flygt sludge 2600 pumps have a range of 1.5 to 5.6 kW for 50 Hz countries and 2.4 – 8.9 hp for 60 Hz countries. Capable of flows up to 28 litres/s and heads to 38 m, these sludge pumps are ideal for open-pit and underground mine dewatering and emergency site drainage.Wear-resistant, they handle solids up to 80 mm and sand concentrations of approximately 20% by weight, due to a larger inlet and pump volute, Hard-IronTM (60 HRC) vortex impeller, polyurethane-lined pump housing and side discharge design.Peter Hansen, Product Manager says “because the hydraulics of the sludge pumps and drainage pumps are interchangeable, customers can adapt one 2600 pump to handle many applications.” The hydraulic ends share drive units and common parts, and are interchangeable with similar sized models of the 2600 drainage series. This interchange ability allows end users the flexibility to adapt to changing application requirements and reduce spare parts inventory.Flygt customers already familiar with the easy-to-service 2600 design will find maintaining the sludge pumps just as simple and quick. The new sludge series features the patented Flygt Plug-InTM seal, which provides a double mechanical seal in a compact and easy to replace single cartridge. External oil and inspection plugs, allow for seal-condition check and oil change without dismantling the pumps, and the removable top gives quick access to all electrical components.The three new models also incorporate the latest enhancement in Flygt pumps: the terminal board. By sealing off the junction box from the motor, the terminal board prevents any water from passing between compartments, thereby reducing repair costs. Plus the screwless springloaded terminal design assures reliable connections and simplified wiring.Another recent addition to the Flygt drainage range is the two-stage Flygt pump 2660 SH.  Twin impellers enable the 2660 SH to pump fluid higher. With 10 kW rated power the 2660 SH can be used in a broad range of applications in mining. A zero leakage ‘Active Seal’ increases the service life of the pump and contributes to longer intervals between oil changes and maintenance check-ups. A unique hydraulic system developed by Xylem, the ‘Dura-Spin’ effectively protects the impeller gap by transporting abrasive particles outwards. A Spin-Out system includes a special design of the seal chamber. Solid particles will be transported via a spiral groove in order to protect the seals and the bottom of the oil housing from sediments and wear. IMReference1. Riveros P.A., Dutrizac J.E., Spencer P. 2001. Arsenic disposal practices in the metallurgical industry, Canadian Metallurgical Quarterly, Vol 40, No 4: 395 – 420.last_img read more

Milena Knežević issues an apology

Milena Knezevic Although Knežević will be fined by her club, in Podgorica are hoping that the imminent suspension will not exceed a one-match ban.Milena Knežević issued an apology over the her misconduct during the EHF Women’s Champions League match, in which Budućnost hosted Györ.In the last minute of the match, Montenegrin national team member headbutted Anita Görbicz; Györ middle-back who is widely regarded as one of the best players in the World.Unsportsmanlike conduct ruins the spectacle: Why did Knežević hit Görbicz?“Dear Anita, i take this opportunity to apologize to you personally, as well as my own club, which I hold in highest regard. My apologies also go to the widespread audience, who had witnessed the unsportsmanlike conduct I made last night. Unfortunately, my misconduct did not only serve to hurt myself, but many people I truly and deeply respect, including you. I am aware that my behavior was inexcusable, but I kindly ask you to accept my most sincere apology, and understand that I sincerely regret what I did. My behavior in the last night’s match did not do any justice to show the real me, and I am going to do whatever is in my power to prevent it from eventually undoing anything good I have ever done for sport. I am aware of the effort it’s going to take, but I am up to the challenge, just like I was many times before. I hope that this will make me into a stronger person, and that I will have the opportunity to show everyone the real Milena Knežević- a sportswomen who truly respects fair-play and lives and breathes this wonderful sport. “ Said Budućnost back-court player on her Facebook profile.Györ governing body had filed a complaint to the EHF and the suspension is imminent for Milena. Although Knežević will be fined by her club, in Podgorica are hoping that the forthcoming suspension will not exceed a one-match ban.TEXT: NEMANJA SAVIC ← Previous Story O LA LA: Look what Gasper Marguc did! Next Story → Tearful Željko Babić praises Lino Červar: “We are yet to understand his greatness” read more

Work to do on mortgage restructuring as longterm arrears remain high

first_imgOVER THREE-QUARTERS of mortgages in arrears of 90 days are more have not been restructured according to the Department of Finance.The figures up to the end of August are for the six main banks and relate to the primary houses that are part of the Central Bank’s mortgage arrears resolution targets.In total, almost 700,000 homes are part of the process with 83 per cent performing as per arrangement and not in arrears.There are, however, 120,754 mortgages in arrears and 68 per cent of those are behind by more than 90 days.The vast majority of these, 75.3 per cent, have come to no agreement with the banks about how to get the mortgage back on track.Of those that have been restructured, lengthening the term of a mortgage is the most frequent form of restructuring with interest only arrangements the next most popular method in 22 per cent of cases.Engagement between consumers and lenders has resulted in 41,236 permanent mortgage restructures according to the figures.Recent interactions between lenders and politicians have exposed differences over what exactly constituted sustainable arrangements.The figures come as a result of the department requesting data on the restructure situation in the six banks which together make up 90 per cent of the market.They will from now on be released each month according to a statement from the department, “Given the importance of this issue and the demand for high quality and timely data on mortgage arrears, the Department of Finance has decided to publish this data each month.”Watch: ‘Phoney concepts’ and ‘haystacks’ – 3 clips from today’s finance committee >Read: Central Bank Governor faces questions over banks’ legal letters and Anglo Tapes >last_img read more

Vancouver families credit March of Dimes with saving kids lives

first_img• What: March of Dimes’ 5K March for Babies. Money raised helps support prenatal wellness programs, research grants, neonatal intensive care unit family support programs and advocacy efforts.• When: 9 a.m. Saturday.• Where: Esther Short Park, 610 Esther St., Vancouver.• Register: Visit www.marchforbabies.org or call 800-525-9255. Day of event registration begins at 7:45 a.m. at the park.Carmendy Rodas was born early — too early, her mother feared. But despite the odds, Carmendy survived. Today, the sassy nearly 2-year-old is learning to talk. She’s already mastered the word “no.”Holdyn Hanset was given a 4 percent chance of surviving. Today, Holdyn is a talkative 3-year-old who likes to go shopping and is walking on his own. His cognitive development is in line with that of 5- and 6-year-olds.The parents of both Vancouver children credit the work of the nonprofit March of Dimes for their keeping their children alive.The Rodas and Hanset families are ambassadors for this weekend’s March for Babies in Vancouver. The 5K walk is a fundraiser for the March of Dimes, the leading nonprofit organization for pregnancy and baby health. The March of Dimes, which has chapters across the country, strives to improve the health of babies by preventing birth defects, premature birth and infant mortality.last_img read more

Ananya Panday on kissing Tiger Shroff It was the best first kiss

first_imgAnanya Panday, Tiger ShroffTwitterChunkey Panday’s daughter Ananya Panday recently revealed that she first ever kiss with Tiger Shroff in her upcoming debut film Student of the Year 2 was the best first kiss ever.In the recently released song from SOTY 2, Mumbai Dilli Di Kudiyaan, debutantes Ananya and Tara Sutaria were seen locking lips with Tiger on screen. So when Tiger was asked about what he was really good at on a radio show, the actor replied, “Main kis mein best hoon? Uh… I actually don’t know what I am the best at.”To which, Tara, who can be seen sharing a passionate kiss with Tiger in SOTY 2 trailer as well, quickly interjected him and said that perhaps he has just said it in his answer that “Main kis mein best hoon”. Her co-star Ananya too echoed her thoughts and said that she can vouch for Tiger for being a great kisser and Tara couldn’t help with be on the same page with her.So when Ananya was further prodded to tell if her kiss with Tiger was the best she had ever experienced, the debutante replied, “Mom, it was my first kiss ever and I have not kissed anyone else so I can’t compare. It was the best first kiss ever.”In the trailer, we can get a glimpse of Ananya making a killer entry all decked up in a leather jacket. The damsel has already begun shooting her second film opposite Kartik Aaryan in the remake of the film Pati Patni Aur Woh which is scheduled for a release in December this year.Directed by Punit Malhotra, Student of the Year 2 will hit the theatres on May 10.last_img read more

Sun Pharma completes acquisition of USbased eye care specialist Ocular Technologies

first_imgSun Pharma on Friday announced that it had completed the process of acquiring Ocular Technologies Sarl, a US-based eye care specialist. “All the necessary formalities for the closure of the said transaction have been concluded and the company has successfully completed the acquisition of Ocular Technologies Sarl, on December 15, 2016,” Sun Pharmaceutical Industries said in a regulatory filing to the Bombay Stock Exchange.Two months ago, the Mumbai-based pharma company announced it was acquiring 100 percent equity stake in Ocular Technologies Sarl, which is owned by private equity firm Auven Therapeutics, for an upfront payment of $40 million. Last month, Sun Pharma said it will acquire Russian firm Biosintez for an enterprise value of about $60 million as part of its consistent focus on emerging markets. As per the agreement, Sun Pharma will acquire 85 percent stake in the Russian firm, which is engaged in manufacture and marketing of pharmaceutical products in Russia and CIS (Commonwealth of Independent States).According to media reports, out of the total deal value of around $60 million, $24 million will be given for acquiring 85.1 percent equity stake in the Russian firm. The Indian firm had said it will also assume Russian company’s debt of $36 million.The Sun Pharmaceutical Industries stock closed at Rs 647.10 on Friday, down 0.36 percent from its previous close.last_img read more

Value your time not money to get happiness in life

first_imgIf you thought money is what ultimately brings more happiness, you could not be farther from the truth. New research suggests that valuing your time more than the pursuit of money can make you a lot happier.“It appears that people have a stable preference for valuing their time over making more money, and prioritising time is associated with greater happiness,” said lead researcher Ashley Whillans from the University of British Columbia in Canada. Also Read – ‘Playing Jojo was emotionally exhausting’The researchers also found that older people were more likely to say they valued their time compared to younger people.“As people age, they often want to spend time in more meaningful ways than just making money,” Whillans added. The findings are based on six studies involving more than 4,600 participants.Some of the studies used real-world examples, such as asking a participant whether he would prefer a more expensive apartment with a short commute or a less expensive apartment with a long commute. Also Read – Leslie doing new comedy special with NetflixA participant also could choose between a graduate programme that would lead to a job with long hours and a higher starting salary or a programme that would result in a job with a lower salary but fewer hours. “Having more free time is likely more important for happiness than having more money,” Whillans said. If people want to focus more on their time and less on money in their lives, they could take some actions to help shift their perspective, such as working slightly fewer hours, paying someone to do disliked chores like cleaning the house, or volunteering with a charity. “Even giving up a few hours of a paycheck to volunteer at a food bank may have more bang for your buck in making you feel happier,” Whillans noted.The findings were published online in the journal Social Psychological and Personality Science.last_img read more

Need Power Fast Aukey Quick Charge Qualcomm Certified Wall and Car Charger

first_imgAukey Quick Charge Wall Charger and Car Charger discounted with the below codes. Need power fast? I do.We’ve just received word that Aukey, a not so known but very well received brand, has discounted their car charger as well as their wall charger that are both Qualcomm certified for Quick Charge 2.0. They claim, and do seem to deliver if the reviews are anything to go by, that they can charge up to 75% faster than a typical charger if paired with a compatible device.If you head on over to Amazon you can get that deal. Just use the following codes:DJPX97DU for the Wall Charger for $7 of savings.Y2TDBXXI for the Car Charger for $7.50 of savings.Just pop those coupon codes into the appropriate box during checkout to enjoy the savings. Right now they’re very well reviewed, and I think I might have to put those claims to the test with our very own reviews. Even see how they work with non Quick Charge 2.0 devices. Charging our gadgets can be somewhat cumbersome at times, because it can take a long time to get an appreciable and usable amount of power. If you’ve got a quick charge 2.0 capable device, then you might enjoy this deal. Share Tweet Submitlast_img read more