| Records |
| Author |
Stefanoff, J.G.; Kim, Y.K. |
| Title |
Reduction of leachability of heavy metals in acid mine drainage |
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Journal Article |
| Year |
1994 |
Publication |
J. Environ. Sci. Health Part A Environ. Sci. Eng. |
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29 |
Issue |
2 |
Pages |
371-388 |
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1 Geography |
| Abstract |
The leaching characteristics of sludges from the treatment of acid mine drainage(AMD) from Iron Mountain Mine near Redding, California were compared using two different processes: caustic soda treatment and a modified lime/sulfide treatment process. The modified lime/sulfide process produced a sludge with better dewaterability characteristics than sludge from the caustic soda process. The results of the Cal WET indicated that the modified lime/sulfide process sludge had less leachability than that of sludge from the caustic soda process. Both processes could achieve a substantial reduction of heavy metals in leachate to levels below the federal regulatory limits(TCLP). For cadmium and zinc, however, neither process produced a sludge that met the requirements of the Cal WET procedure. |
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CH2M HILL, 2525 Airpark Drive, Redding, CA 96001 |
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Reduction of leachability of heavy metals in acid mine drainage; (1009849); 93x-00709; Using Smart Source Parsing; Geobase |
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CBU @ c.wolke @ 17564 |
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231 |
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Perry, A.; Kleinmann, R.L.P. |
| Title |
The use of constructed wetlands in the treatment of acid mine drainage |
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Journal Article |
| Year |
1991 |
Publication |
Natural Resources Forum |
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| Volume |
15 |
Issue |
3 |
Pages |
178-184 |
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quality standard water treatment constructed wetland pond system acid mine drainage USA 1 Geography |
| Abstract |
US government regulations require that all effluents from industrial operations, including mining, meet certain water quality standards. Constructed wetlands have proven to be useful in helping to attain those standards. Application of this biotechnology to mine water drainage can reduce water treatment costs and improve water quality in streams and rivers adversely affected by acidic mine water drainage from abandoned mines. Over 400 constructed wetland water treatment systems have been built on mined lands largely as a result of research by the US Bureau of Mines. Wetlands are passive biological treatment systems that are relatively inexpensive to construct and require minimal maintenance. Chemical treatment costs are reduced sufficiently to repay the cost of construction in less than a year. The mine waste water is typically treated in a series of excavated ponds that resemble small marsh areas. The ponds are engineered to facilitate bacterial oxidation of iron. Ideally, the water then flows through a composted organic substrate supporting a population of sulphate-reducing bacteria which raises the pH. Constructed wetlands in the US are described – their history, functions, construction methodologies, applicabilities, limitations and costs. -Authors |
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US Department of the Interior, Bureau of Mines, 2401 E Street, NW Washington, DC 20241, USA |
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The use of constructed wetlands in the treatment of acid mine drainage; (0895945); 92h-01979; Using Smart Source Parsing pp; Geobase |
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no |
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CBU @ c.wolke @ 17569 |
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272 |
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King, T.V.V. |
| Title |
Environmental considerations of active and abandoned mine lands: lessons from Summitville, Colorado |
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Journal Article |
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1995 |
Publication |
US Geological Survey Bulletin |
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2220 |
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38 |
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acid mine drainage mining environmental effect remediation environmental assessment USA Colorado Summitville 1 Geography |
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Extreme acid-rock drainage is the dominant long-term environmental concern at the Summitville mine and could have been predicted given the geological characteristics of the deposit. Extensive remedial efforts are required to isolate both unweathered sulfides and soluble metal salts in the open-pit area and mine-waste piles from weathering and dissolution. Results of studies as of late 1993 indicate that mining at Summitville has had no discernible short-term adverse effects on barley or alfalfa crops irrigated with Alamosa River water. Remediation of the site will help to ensure that no adverse effects occur over the longer term. -from Editor |
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Environmental considerations of active and abandoned mine lands: lessons from Summitville, Colorado; (1119406); 95j-11521; Using Smart Source Parsing pp; Geobase |
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CBU @ c.wolke @ 17561 |
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332 |
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Brown, R.J. |
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Book Whole |
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1979 |
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1 Geography |
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The bibliography cites studies primarily concerning control and treatment methods. Reports on hydrogeology, ecology, formation, and sources are included. (This updated bibliography contains 300 abstracts, 30 of which are new entries to the previous edition.) |
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279 |
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(USA), N.T.I.S. |
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Acid mine drainage (a bibliography with abstracts). Report for 1964-Sep 79 |
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Acid mine drainage (a bibliography with abstracts). Report for 1964-Sep 79; (0348451); 82b-1185; Geobase; Using Smart Source Parsing pp |
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no |
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CBU @ c.wolke @ 17573 |
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430 |
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