Billion litres of coal-mine muck leaks into Athabasca River

EDMONTON - Geotechnical engineers remained at the Obed Mountain coal mine Sunday trying to determine how one billion litres of murky water leaked from a containment pond …

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Coal waste - SourceWatch

Waste coal is referred to as "culm" in the Eastern Pennsylvania anthracite fields and as "gob" or "boney" in the bituminous coal mining regions. Liquid coal waste. Before burning, coal is crushed and washed, creating waste water filled with toxins. Another form of liquid coal waste is acidic mine runoff.

Alberta Coal Mining Wastewater Guidelines

Alberta Coal Mining Wastewater Guidelines . March . 2014. ... "major pond" means a mine wastewater handling facility that receives mine wastewater from active ... The following guidelines apply to all coal processing plants as well as coal transport water for hydraulic mining unless otherwise stipulated in an EPEA approval for a specific mine ...

State of Utah

State of Utah DEPARTMENT OF NATURAL RESOURCES 1594 West North Temple, Suite 1210, PO Box 145801, Salt Lake City, UT 84114-5801 ... Coal Mine Waste, Refuse Piles, Impoundments 8. Noncoal Waste 9. ... The mine and the rail loadout sediment pond contain water. The embankments appear to be stable. Inlets and outlets would function as designed.

Coal Slurry Catastrophes Continue: West ia Hit With ...

Coal slurry or sludge is a waste fluid produced by washing coal with water and chemicals prior to shipping the coal to market. ... There are other methods of separating coal and non-coal used in other places, primarily where mining occurs in arid areas with limited water supplies. ... On Feb. 3, in Eden, N.C., a large pipe under a coal ash pond ...

Coal slurry - Wikipedia

Coal slurry is a mixture of solids (mined coal) and liquids (usually water) produced by a coal preparation plant. As a slurry, coal is separated from non-combustable components (ash) and can be fractionated by particle size as well.

Dewatering of Mine Drainage Sludge - EPA

WATER POLLUTION CONTROL RESEARCH SERIES • 14010 FJX 12/71 Dewatering of Mine Drainage Sludge U.S. ENVIRONMENTAL PROTECTION AGENCY ... 1. Coal mine water constituents and treatment methods strongly affect the resulting sludge characteristics. The most important sludge charac- teristics affected are volume, density, and the ability to flow ...

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Coal Slurry and Coal Ash | SouthWings

Coal Slurry and Coal Ash. ... while the mining process generates millions of tons of solid waste. The cheapest way for coal companies to deal with these wastes is by constructing dams from the solid mining refuse to impound the liquid waste in the heads of valleys, close to their coal processing plants. ... ash ponds contain toxic materials ...

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How it Works: Water for Coal | Union of Concerned Scientists

Storing coal-mining waste together with the water used to separate it from the coal can present a significant hazard if the impoundments ("slurry ponds") fail or the slurry breaks through into nearby abandoned mines. After extraction, coal must be transported to the power plant.

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Effectiveness of Surface Mine Sedimentation Ponds - EPA

Nine selected sedimentation ponds in the three eastern coal-mining States of Pennsylvania, West ia, and Kentucky were sampled under two different operating conditions—a baseline and a rainfall event. ... Anticipated pond water temperature Nevertheless, for comparative purposes an analysis was made on one of the measured ponds to ...

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Coal Waste Water Treatment Video - YouTube

Jul 30, 2013· Coal Mine water is treated by lime and I show the process of how it is done in the video. They use lime to raise the PH of the water and pump it to a settling pond to allow impurities to settle ...

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Coal impacts on water | Greenpeace International

The coal ash leaks from the collapsed unlined coal ash pond into the Dan River. Duke Energy said that 50,000 to 82,000 tons of coal ash and up to 27 million gallons of water were released. Despite the closing of the plant in 2012, the ash pond remains.

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Water pollution from coal - SourceWatch

Water Pollution from Coal includes negative health and environmental effects from the mining, processing, burning, and waste storage of coal, including acid mine drainage, thermal pollution from coal plants, acid rain, and contamination of groundwater, streams, rivers, and seas from heavy metals, mercury, and other toxins and pollutants found in coal ash, coal sludge, and coal waste.

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Utah Division of Oil, Gas and Mining

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