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Author |
Skousen, J.G.; Sexstone, A.; Ziemkiewicz, P.F. |
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Book Whole |
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Year |
2000 |
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Pages |
131-168 |
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Keywords |
acid mine drainage; ground water; pollution; remediation; surface water; waste management; water pollution; water treatment 22, Environmental geology Umwelt Bergbau AMD |
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American Society of Agronomy |
Place of Publication |
Madison, Wis. |
Editor |
Barnhisel Richard, I.; Darmody Robert, G.; Daniels, W.L. |
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Reclamation of Drastically Disturbed Lands |
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0-89118-146-6 |
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Acid Mine Drainage Control and Treatment; 2; AMD ISI | Wolkersdorfer; SSZB; TUBAFG 01.4564 1 Abb., 3 Tab. |
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Call Number |
CBU @ c.wolke @ 9907 |
Serial |
242 |
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Author |
Schwartz, M.O.; Ploethner, D. |
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Title |
From mine water to drinking water; heavy-metal removal by carbonate precipitation in the Grootfontein-Omatako Canal, Namibia |
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Book Chapter |
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Year |
1999 |
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Keywords |
Africa; aluminum; cadmium; canals; carbonates; copper; drinking water; geochemistry; Grootfontein-Omatako Canal; heavy metals; hydrochemistry; iron; lead; manganese; metallogenic provinces; metals; mine drainage; mineral deposits, genesis; mines; Namibia; policy; precipitation; purification; Southern Africa; transport; water management; water treatment 22, Environmental geology |
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Bundesanst. fuer Geowiss. und Rohstoffe |
Place of Publication |
Hanover |
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From mine water to drinking water; heavy-metal removal by carbonate precipitation in the Grootfontein-Omatako Canal, Namibia; GeoRef; English; 2002-033925; International congress on Mine, water and environment, Seville, Spain, Sept. 13, 1999 References: 7; 2 tables, sketch maps |
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Call Number |
CBU @ c.wolke @ 5929 |
Serial |
250 |
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Author |
Sato, D.; Tazaki, K. |
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Title |
Calcification treatment of mine drainage and depositional formula of heavy metals |
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Journal Article |
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Year |
2000 |
Publication |
Chikyu Kagaku = Earth Science |
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Volume |
54 |
Issue |
5 |
Pages |
328-336 |
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Keywords |
acid mine drainage Asia calcification deposition ettringite Far East heavy metals Ishikawa Japan Japan lime Ogoya Mine pollution sulfates waste water water treatment 22, Environmental geology |
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Abstract |
Depositional formula of heavy metals after disposal of the mine drainage from the Ogoya Mine in Ishikawa Prefecture, Japan, was mineralogically investigated. Strong acidic wastewater (pH 3.5) from pithead of the mine contains high concentration of heavy metals. In this mine, neutralizing coagulation treatment is going on by slaked lime (calcium hydroxides: Ca(OH) (sub 2) ). Core samples were collected at disposal pond to which the treated wastewater flows. The core samples were divided into 44 layers based on the color variation. The mineralogical and chemical compositions of each layer were analyzed by an X-ray powder diffractometer (XRD), an energy dispersive X-ray fluorescence analyzer (ED-XRF) and a NCS elemental analyzer. The upper parts are rich in brown colored layers, whereas discolored are the deeper parts. The color variation is relevant to Fe concentration. Brown colored core sections are composed of abundant hydrous ferric oxides with heavy metals, such as Cu, Zn, and Cd. On the other hand, S concentration gradually increases with depth. XRD data indicated that calcite decreases with increasing depth, and ettringite is produced at the deeper parts. Cd concentration shows similar vertical profile to those of calcite and ettringite. The results revealed that hydrous ferric oxides, calcite and ettringite are formed on deposition, whereby incorporating the heavy metals. |
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ISSN |
0366-6611 |
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Notes |
Calcification treatment of mine drainage and depositional formula of heavy metals; 2001-032610; References: 19; illus. incl. 1 table, sketch map Japan (JPN); GeoRef; Japanese |
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no |
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Call Number |
CBU @ c.wolke @ 16543 |
Serial |
252 |
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Author |
Mitchell, P.; Rybock, J.; Wheaton, A. |
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Title |
Treatment and prevention of ARID using silica micro encapsulation |
Type |
Book Chapter |
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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 |
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acid mine drainage Bunker Hill Mine Idaho mines pollution Shoshone County Idaho United States water treatment 22, Environmental geology |
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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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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 |
Matsuoka, I. |
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Title |
Mine drainage treatment |
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Journal Article |
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Year |
1996 |
Publication |
Shigen to Sozai = Journal of the Mining and Materials Processing Institute of Japan |
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Volume |
112 |
Issue |
5 |
Pages |
273-281 |
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Keywords |
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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Notes |
Mine drainage treatment; 1997-062437; References: 66; illus. incl. 9 tables Japan (JPN); GeoRef; Japanese |
Approved |
no |
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Call Number |
CBU @ c.wolke @ 6342 |
Serial |
305 |
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