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Nawrot, J. R., Conley, P. S., & Sandusky, J. E. (1994). Concentrated alkaline recharge pools for acid seep abatement; principles, design, construction, and performance. In Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 (pp. 382–391). Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine drainage.
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Murdock, D. J., Fox, J. R. W., & Bensley, J. G. (1994). Treatment of acid mine drainage by the high density sludge process. In Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 (pp. 241–249). Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine drainage.
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Mosher, J. (1994). Heavy-metal sludges as smelter feedstock. Engineering and Mining Journal, 195(9), 25–30.
Abstract: Many industries produce a waste-water stream high in heavy metals. Disposal of sludge from these wastewater treatment plants has become increasingly difficult and expensive in the US due to passage of the Resource Conservation and Recovery Act's 'land disposal ban' for hazardous wastes. Innovative methods can be found for dealing with such wastes. For example, in performing a mandated clean-up under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), Asarco's California Gulch water-treatment plant in Colorado meets CERCLA clean-up goals while using a waste water treatment sludge as a smelter feedstock, recovering incidental saleable metals, and producing non-hazardous products. In this plant, Asarco treats acidic mine-drainage water having high metal concentrations and uses the waste sludge generated as a lime replacement in lead smelting operations. -Author
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Michaud, L. H. (1994). Recent technology related to the treatment of acid drainage. Earth and Mineral Sciences, 63(3), 53–55.
Abstract: The generation of acid mine drainage is a serious environmental problem associated with coal mining. The chemistry of acid mine drainage is outlined. The prevention and minimization of acid mine drainage formation is examined. The in situ inhibition and remediation of acid mine drainage is described. Methods for the passive treatment of acid mine drainage after formation are discussed. The design of treatment systems is considered. -P.M.Taylor
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Limited, S. C. (1994). MEND Report. 3.32.1: The Mine Environment Neutral Drainage [MEND] Program.
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