Sudan UN refugee agency opens fourth safe camp inside neighbouring Chad

Some 367 refugees were transferred to a camp at Iridimi at the weekend, UN High Commissioner for Refugees (UNHCR) spokesman Kris Janowski told reporters today in Geneva.Iridimi’s first arrivals mean almost 13,000 refugees have now been transferred to four camps – the others are living at camps in Touloum, Farchana and Kounoungo.The camps were set up by UNHCR and non-governmental organizations (NGOs) well away from the Chad-Sudan border, where an estimated 110,000 refugees have been staying since fleeing Sudan. Sudanese militias had been attacking the border shelters, prompting the UN to find safer sites.Mr. Janowski said a fifth camp, at Goz Amer, should start accepting refugees from the border zone soon. It will be the first camp within its region of eastern Chad, which is next to Darfur.UNHCR, the UN Children’s Fund (UNICEF), the NGO known as CARE and Chad’s national refugee agency distributed aid to 6,000 Sudanese refugees in the border town of Bahai over the weekend, he said.Many of the refugees there had already used up their savings and food supplies and had been relying on food donations from local Chadians and on doing small jobs in return for money to buy food, according to UNHCR.Fighting between the Sudanese Government, local militia and rebel groups, including the Sudan Liberation Army (SLA), since March last year has driven thousands of people from Darfur and internally displaced another 700,000 people in Sudan, which has a total of 3 million to 4 million displaced throughout the country largely as a result of its 20-year civil war. read more

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Flotation maximising fine coal recovery in Canada

first_imgA large Canadian metallurgical coal plant sought help in maximising fine coal recovery, minimising moisture and optimising the performance of its coal flotation circuit. It also wanted to improve the environmental footprint by replacing diesel as a collector in their coal flotation process. Another local company has been fined in excess of $100,000 for polluting the environment, and imprisonment had been involved. Having extensive knowledge of the customer’s operations, and after a thorough evaluation that included both laboratory and in-plant flotation testing, it was determined that Nalco’s NALFLOTE 9899 flotation reagent could help the customer meet its goals. NALFLOTE 9899 is an alternative to using fuel oil (a diesel collector). Its active chemistry is derived from renewable resources. Diesel on the other hand is derived from petroleum oil, with documented negative impact on the environment.The customer had been dosing diesel collector at 3,600 cc/min. With NALFLOTE 9899, it only needed to dose at 1,400 cc/min. Moreover, the customer replaced the frother reagent (methyl isobutyl carbinol) with Nalco’s NAFLOTE 9897. The result was an increase in metallurgical coal tonnage of 14 t/h. And the ash content of the recovered coal decreased by 5%.In addition, Nalco reports “the NALFLOTE program is more forgiving – it adapts to different coal seams mined. Under the diesel collector program, dosage can increase as high as 4,500 cc/min if the coal seam is of poorer quality.Ancillary benefits observed from implementing the program include a decrease in the solids loading on the fine refuse circuit and corresponding decrease in the cost of water clarification as the result of reduced flocculant consumption. Total benefit of the NALFLOTE program is estimated to be $25 million.“The successful NALFLOTE integration at this site improved the customer’s productivity and profitability while decreasing the environmental footprint. Further, the success enjoyed at this site has resulted in plant management recommending that sister plants also evaluate the NALFLOTE alternative. So far four plants have adopted this new approach, adding millions of dollars in annual clean coal recovery.last_img read more

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