Abstract:A demonstration project was conducted to investigate treating acid mine water by alkaline injection technology (AIT). A total of 379 t of alkaline coal combustion byproduct was injected into in an eastern Oklahoma drift coal mine. AIT increased the pH and alkalinity, and reduced acidity and metal loading. Although large improvements in water quality were only observed for 15 months before the effluent water chemistry appeared to approach pre-injection conditions, a review of the data four years after injection… Show more
“…Other rock types (serpentinite; Bernier 2005) and unconventional industrial waste or byproducts such as fly ash from coal power stations or kiln dust from cement factories have been suggested for the treatment of AMD waters (Canty and Everett 2006;Pérez-López et al 2007a, b). However, fly ash commonly contains elevated metal and metalloid concentrations, and its reaction rate is slow compared to lime (Kuyucak 2001).…”
“…Other rock types (serpentinite; Bernier 2005) and unconventional industrial waste or byproducts such as fly ash from coal power stations or kiln dust from cement factories have been suggested for the treatment of AMD waters (Canty and Everett 2006;Pérez-López et al 2007a, b). However, fly ash commonly contains elevated metal and metalloid concentrations, and its reaction rate is slow compared to lime (Kuyucak 2001).…”
Ackman, T.E. (2003) An introduction to the use of airborne technologies for watershed characterization in mined areas. Mine Water Environ 22, 62-68. Adams, M.D. (ed.) (2005) Advances in Gold Ore Processing. 1076 pp. Elsevier.
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