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Wilmoth, R. C., Mason, D. G., & Gupta, M. (1972). Treatment of ferrous iron acid mine drainage by reverse osmosis.
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Wildeman, T. R., Bednar, A. J., Gusek, J. J., & Pinto, A. (2002). A review of the passive treatment of arsenic Hardrock mining 2002; issues shaping the industry..
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Wieder, R. K. (1989). A survey of constructed wetlands for acid coal mine drainage treatment in the Eastern United States. Wetlands, 9(2), 299–315.
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Swoboda-Colberg, N., Colberg, P., & Smith, J. L. (1994). Constructed vertical flow aerated wetlands.
Abstract: In the report, wetland technology is described in which the main reactive layer is limestone gravel (rather than organic material) which is overlain by a fine gravel filter and soil. The three-year project included laboratory and field studies. Vertical aerated wetlands, simulated by columns, constructed in the field and in the laboratory, were operated during the project. The report presents a summary of results given in previous reports and summaries of results obtained using water from Butte, MT, and field studies at the Rockford Tunnel, near Idaho Springs, CO.
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Skousen, J., & Jenkins, M. (2001). Acid mine drainage treatment costs with calcium oxide and the Aquafix machine. Green Lands, 31(3), 46–51.
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