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Author |
Pettit, C.M.; Scharer, J.M.; Chambers, D.B.; Halbert, B.E.; Kirkaldy, J.L.; Bolduc, L. |
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Title |
Neutral mine drainage |
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Book Chapter |
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Year |
1999 |
Publication |
Sudbury '99; mining and the environment II; Conference proceedings |
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Keywords |
acid mine drainage drainage geochemistry mining mining geology models neutral mine drainage pH pollution remediation technology water management water quality water resources 22, Environmental geology |
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Abstract |
Acid mine drainage is recognized as a serious environmental issue at mine sites world wide. While sulphate and metal concentrations in acidic drainage can reach exceptionally high levels, these can also be elevated and of concern in neutral drainage from waste rock and tailings. “Neutral mine drainage” (NMD) has not yet received as widespread attention as acid mine drainage (AMD). The oxidation of sulphide minerals and the production of either acidic or neutral contaminated drainage is affected by many factors. This paper examines the specific factors that result in the production of “neutral mine drainage” from mine wastes. Several case studies are presented which involve predictive geochemical modelling to illustrate the possible time frame and magnitude of contaminated neutral drainage. |
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Sudbury Environmental |
Place of Publication |
Sudbury |
Editor |
Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G.J. |
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0886670470 |
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Neutral mine drainage; GeoRef; English; 2000-043769; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 12; illus. incl. 3 tables |
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Call Number |
CBU @ c.wolke @ 16589 |
Serial |
270 |
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Author |
Parker, G.; Noller, B.; Waite, T.D. |
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Title |
Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia |
Type |
Book Chapter |
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Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; Conference proceedings |
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Keywords |
acid mine drainage Australasia Australia buffers carbonate ion geochemistry Northern Territory Australia Pine Creek Geosyncline pollution pyrite sulfides surface water tropical environment water quality 22, Environmental geology |
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Abstract |
Surface waters in the Pine Creek Geosyncline (located in Australia's “Top End”, defined as the area of Australia north of 15 degrees S) are characterized by their low carbonate buffering capacity. These waters are buffered by silicate weathering and hence are slightly acidic, ranging in pH from 4.0 to 6.0. The Pine Creek Geosyncline contains most of the Top Ends' economic mineral deposits and characteristically shows no correlation between carbonate minerals and sulfidic orebodies hosting gold deposits (unlike uranium deposits). Thus many gold mines do not have ready access to carbonate minerals for buffering acid mine drainage (AMD). It is possible that locally available fast-weathering silicate minerals may be used to buffer AMD seeps. The buffering intensity of silicate minerals exceeds that of carbonate minerals, but their slow dissolution kinetics has ensured that these materials have received little attention in treating AMD. In addition, carbonate mineral dissolution is retarded when contacted with intense AMD solutions due to the formation of surface coatings of iron minerals. The lower pH range of silicate mineral dissolution may prevent the formation of such coatings. The Pine Creek Geosyncline consists of a complex geochemistry, and a number of fast-weathering silicate minerals have been noted in various areas. The difficulty in assessing such minerals for use in buffering AMD is the lack of kinetic data available under conditions prevalent AMD (i.e., low pH solutions saturated with aluminium and silica). This study sets out to evaluate the applicability of using such minerals to treat AMD surface seeps. |
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Goldsack, D.E.; Belzile, N.; Yearwood, P.; Hall, G.J. |
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0886670470 |
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Assessment of the use of fast-weathering silicate minerals to buffer AMD in surface waters in tropical Australia; GeoRef; English; 2000-048644; Sudbury '99; Mining and the environment II, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 36; illus. incl. 2 tables |
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Call Number |
CBU @ c.wolke @ 16594 |
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273 |
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Author |
Nawrot, J.R.; Conley, P.S.; Sandusky, J.E. |
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Title |
Concentrated alkaline recharge pools for acid seep abatement; principles, design, construction, and performance |
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Book Chapter |
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Year |
1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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Pages |
382-391 |
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Keywords |
acid mine drainage; alkalinity; concentration; pollution; ponds; preventive measures; remediation; seepage; waste disposal; water quality 22, Environmental geology |
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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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Concentrated alkaline recharge pools for acid seep abatement; principles, design, construction, and performance; GeoRef; English; 2007-045192; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 11; illus. incl. 2 tables, sketch map |
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Call Number |
CBU @ c.wolke @ 6589 |
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288 |
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Author |
Murdock, D.J.; Fox, J.R.W.; Bensley, J.G. |
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Title |
Treatment of acid mine drainage by the high density sludge process |
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Book Chapter |
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Year |
1994 |
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Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 |
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241-249 |
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Keywords |
acid mine drainage; concentration; oxidation; pollutants; pollution; remediation; solute transport; sulfides; waste water; water quality 22, Environmental geology |
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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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Treatment of acid mine drainage by the high density sludge process; GeoRef; English; 2007-045177; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 10; illus. incl. 2 tables |
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Call Number |
CBU @ c.wolke @ 6584 |
Serial |
292 |
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Author |
Meek, F.A., Jr.; Skousen, J.G.; Ziemkiewicz, P.F. |
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Title |
Evaluation of acid prevention techniques used in surface mining |
Type |
Book Chapter |
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Year |
1996 |
Publication |
Acid mine drainage control and treatment |
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Keywords |
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 |
Place of Publication |
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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Call Number |
CBU @ c.wolke @ 6360 |
Serial |
301 |
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