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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Strohl, J. H., & Hern, J. L. (1976). Removal of undesirable cations from acid mine water by a new cation-exchange material. Morgantown, W.V.: Water Research Institute, Center for Extension and Continuing Education, West Virginia University.
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Stewart, B. R. (1996). The influence of fly ash additions on acid mine drainage production from coarse coal refuse. Ph.D. thesis, Virginia Polytechnic Institute and State University,, Blacksburg.
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St-Arnaud, L. C. (1994). Water covers for the decommissioning of sulfidic mine tailings impoundments. In Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 (pp. 279–287). 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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Stark, L. R., & Williams, F. M. (1994). The roles of spent mushroom substrate for the mitigation of coal mine drainage. Compost Science and Utilization, 2(4), 84–94.
Abstract: Spent mushroom substrate (SMS) has been used widely in coal mining regions of the USA as the primary substrate in constructed wetlands for the treatment of coal mine drainage. In laboratory and mesocosm studies, SMS has emerged as one of the substrates for mine water treatment. Provided the pH of the mine water does not fall below 3.0, SMS can be used in the mitigation plan. However, neither Mn nor dissolved ferric Fe appears to be treatable using reducing SMS wetlands. Since after a few years much of the nonrefractive organic carbon in SMS wil have been decomposed and metabolized, carbon supplementation can significantly extend the life of the SMS treatment wetland and improve water treatment. -from Authors
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