bottom ash treatment News

  • Coal ash lines river 70 miles from NC spill site

    Federal officials said Tuesday that toxic coal ash has coated the bottom of a North Carolina river as many as 70 miles downstream of a Duke Energy dump where a massive spill occurred two weeks ago. The U.S. Fish and Wildlife Service advised that a massive pile of coal ash about 75 feet long and as much as 5 feet deep has been detected on the ...


    By Associated Press

  • Toxins leaking from 2nd pipe at NC coal ash dump

    North Carolina officials said Tuesday that groundwater containing unsafe levels of arsenic apparently leaching from a Duke Energy coal ash dump is still pouring into the Dan River, which is already contaminated from a massive Feb. 2 spill. The state Department of Environment and Natural Resources ordered Duke to stop the flow of ...


    By Associated Press

  • ASTM D7762 - 11 Standard Practice for Design of Stabilization of Soil and Soil-Like Materials with Self-Cementing Fly Ash

    Self-cementing coal fly ashes are suitable materials for the stabilization of soils, recycled pavement materials and road surface gravel. Fly ash stabilization can result in improved properties, including increased stiffness, strength and freeze-thaw durability; reduced hydraulic conductivity, plasticity, and swelling; and increased control of soil compressibility ...


    By ASTM International

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