| Records |
| Author |
Mitchell, P.; Rybock, J.; Wheaton, A. |
| Title |
Treatment and prevention of ARID using silica micro encapsulation |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Proceedings of the 16th annual National meeting of the American Society for Surface Mining and Reclamation; Mining and reclamation for the next millennium |
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Pages |
657-661 |
| Keywords |
acid mine drainage Bunker Hill Mine Idaho mines pollution Shoshone County Idaho United States water treatment 22, Environmental geology |
| Abstract |
In response to the known drawbacks of liming and the ever-increasing regulatory demands on the mining industry, KEECO has developed a silica micro encapsulation (SME) process. SME is a cost-effective, high performance reagent that is utilized in conjunction with simple chemical delivery systems. By encapsulating metals in a silica matrix formation and rapidly precipitating them into a sand-like sludge, it offers all the advantages of liming without the negative drawbacks. Utilizing an injection technique via a high shear mixing device, a slurry from of the SME product called KB-1 (super TM) was applied to ARD at the Bunker Hill Mine in Idaho and to ARD pumped from collection ponds at a remote mine site in the Sierra Nevada Mountains. Flow rates at both sites ranged from 500 to 800 gallons per minute. Treated water from the Bunker Hill Mine operation achieved the site's NPDES criteria for all evaluated metals and U.S. Drinking Water quality for arsenic, cadmium, chromium, lead and zinc with a dosage rate of 1.34 grams KB-1 (super TM) per liter. Treated water from the Sierra Nevada project focused on the control of aluminum, arsenic, copper, iron and nickel. All water samples displayed a >99.5% reduction in these metals, as well as an 84%-87% reduction in the concentration of sulfate. Testing on sludge generated from both operations achieved TCLP Action Limits. The SME process is currently under evaluation as a means to coat the pyrite surfaces of newly generated mine tailings to prevent oxidation and future acid generation. |
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16 |
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Bengson, S.A.; Bland, D.M. |
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Treatment and prevention of ARID using silica micro encapsulation; GeoRef; English; 2001-047986; 16th annual National meeting of the American Society for Surface Mining and Reclamation, Scottsdale, AZ, United States, Aug. 13-19, 1999 2 tables |
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| Call Number |
CBU @ c.wolke @ 16602 |
Serial |
297 |
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| Author |
Meek, F.A., Jr.; Skousen, J.G.; Ziemkiewicz, P.F. |
| Title |
Evaluation of acid prevention techniques used in surface mining |
Type |
Book Chapter |
| Year |
1996 |
Publication |
Acid mine drainage control and treatment |
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Issue |
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Pages |
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acidic composition; acidification; Allegheny Mountains; Appalachians; central West Virginia; coal mines; controls; environmental analysis; environmental management; ground water; lime; mines; North America; phosphates; pollution; preventive measures; reclamation; remediation; spoils; surface water; United States; Upshur County West Virginia; water quality; water treatment; West Virginia 22, Environmental geology |
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West Virginia University and the National Mine Land Reclamation Center |
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Morgantown |
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Evaluation of acid prevention techniques used in surface mining; GeoRef; English; 2004-051150; Edition: 2 References: 5; illus. incl. 2 tables |
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CBU @ c.wolke @ 6360 |
Serial |
301 |
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McConchie, D.M.; Clark, M.; Hanahan, C.; Baun, R. |
| Title |
New treatments for the old problems of acid mine drainage and sulphidic mine tailings storage |
Type |
Journal Article |
| Year |
2000 |
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acid mine drainage; ash; carbonate rocks; clastic sediments; construction materials; crushed stone; hydroxides; iron hydroxides; iron oxides; mines; mud; oxides; pH; pollution; reclamation; red mud; remediation; sea water; sedimentary rocks; sediments; storage; sulfides; tailings; waste management 22, Environmental geology |
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Programme & Abstracts - International Symposium on Environmental Geochemistry (ISEG), vol.5 |
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5th international symposium on Environmental geochemistry; conference abstracts and scientific programme |
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2006-033067; 5th international symposium on Environmental geochemistry, Cape Town, South Africa, April 2004; GeoRef; English |
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CBU @ c.wolke @ 5858 |
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304 |
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| Author |
Matsuoka, I. |
| Title |
Mine drainage treatment |
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Journal Article |
| Year |
1996 |
Publication |
Shigen to Sozai = Journal of the Mining and Materials Processing Institute of Japan |
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112 |
Issue |
5 |
Pages |
273-281 |
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acid mine drainage; Asia; Far East; Japan; mine dewatering; mine drainage; mines; pollution; water treatment 22, Environmental geology |
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0916-1740 |
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Mine drainage treatment; 1997-062437; References: 66; illus. incl. 9 tables Japan (JPN); GeoRef; Japanese |
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no |
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CBU @ c.wolke @ 6342 |
Serial |
305 |
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| Author |
Mataix Gonzalez, C.; Escribano Bombin, M. |
| Title |
Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage |
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Journal Article |
| Year |
1996 |
Publication |
Ingeopres |
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42 |
Issue |
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Pages |
15-18 |
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acid mine drainage; dredging; effects; inorganic acids; metal ores; mines; pollution; sewage; sulfuric acid; water pollution; water treatment 22, Environmental geology |
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1136-4785 |
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Sistemas de control y tratamiento de drenajes acidos de minas. Control and treatment systems for acid mine drainage; 1997-066186; References: 7; 4 plates Spain (ESP); GeoRef; Spanish |
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no |
| Call Number |
CBU @ c.wolke @ 6385 |
Serial |
306 |
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