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Hayward, D.; Barnard, R. |
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Treatment of acid mine wastewaters. Behandlung saurer Grubenwässer |
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1993 |
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World Mining Equipment |
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17 |
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6 |
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36-37 |
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Keywords |
Wasseraufbereitung Abwasserbehandlung chemische-Abwasserreinigung Grubenentwässerung Ausfällung Schwermetalle Calciumcarbonat pH-Wert Wasserreinhaltung Grubenwasser |
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Überblick über einschlägige Verfahren zum Ausfällen der sauren Betandteile, Entfernen der Schwermetalle, und Einstellen des pH-Wertes auf einen Wert von 6 bis 9. Hauptsächliche Verfahren zum Ausfällen sind: Ausfällen mit Kalkhydrat (Ca(OH)2), mit Kalkstein, Calcium- oder Natriumsulfid. Durch Abtrennen des Niederschlages in einem Kläreindicker und zusätzliche Reinigung durch Filtrieren kann ein Anteil von 90% der unlöslichen Schwermetallverbindungen entfernt werden. Allgemein wird mit diesem Verfahren ein Standardgehalt von 5 mg/l erreicht. Durch zusätzliche Anwendung physikochemischer Verfahren kann der Schwermetallgehalt weiter gesenkt werden: Mikrofiltration, Umkehrosmose, Elektrodialyse, Ionenaustausch, biochemische und spezielle chemische Verfahren können je nach Eigenart der Grubenwässer verwendet werden. |
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0746-729x |
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Treatment of acid mine wastewaters. Behandlung saurer Grubenwässer; 4737, BERG , 01.01.93; Words: 328; M9311 6018 586; 2 Seiten, 2 Bilder 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3PH *Trennen fest/flüssig/gasförm. Stoffe, dispers. Stoffsysteme*; BERG, Copyright FIZ Technik e.V.; EN Englisch |
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CBU @ c.wolke @ 17612 |
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358 |
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Zamzow, M.J.; Schultze, L.E. |
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Title |
Treatment of acid mine drainage using natural zeolites |
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Journal Article |
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1993 |
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International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites |
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1993 |
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220-221 |
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abandoned mines; acid mine drainage; clinoptilolite; experimental studies; feasibility studies; framework silicates; hydrochemistry; mines; Nevada; northeastern Nevada; phillipsite; remediation; Rio Tinto Deposit; silicates; surface water; United States; zeolite group abandoned mines acid mine drainage clinoptilolite experimental studies feasibility studies framework silicates hydrochemistry mines Nevada northeastern Nevada phillipsite remediation Rio Tinto Deposit silicates surface water United States zeolite group |
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Treatment of acid mine drainage using natural zeolites; GeoRef: 95-04036 1 table; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9998 |
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192 |
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Govind, R. |
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Title |
Treatment of acid mine drainage using membrane bioreactors |
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2001 |
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Bioremediation of Inorganic Compounds |
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6 |
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9 |
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1-8 |
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mine water treatment |
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Acid mine drainage is a severe water pollution problem attributed to past mining activities. The exposure of the post-mining mineral residuals to water and air results in a series of chemical and biological oxidation reactions, that produce an effluent which is highly acidic and contains high concentrations of various metal sulfates. Several treatment techniques utilizing sulfate reducing bacteria have been proposed in the past; however few of them have been practically applied to treat acid mine drainage. This research deals with membrane reactor studies to treat the acid mine drainage water from Berkeley Pit in Butte, Montana using hydrogen-consuming sulfate reducing bacteria. Eventually, the membrane reactor system can be applied towards the treatment of acid mine drainage to produce usable water. |
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Treatment of acid mine drainage using membrane bioreactors; Isip:000175098600001; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17051 |
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162 |
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Author |
Nakazawa, H. |
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Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge |
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2006 |
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Sohn International Symposium Advanced Processing of Metals and Materials, Vol 9 |
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373-381 |
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mine water treatment arsenic biotechnology filtration iron membranes microorganisms mining industry oxidation sludge treatment acid mine drainage arsenic ion sludge treatment Horobetsu mine Hokkaido Japan ferrous iron membrane filter pore size arsenite solutions microbial oxidation As Fe Manufacturing and Production |
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An acid mine drainage in abandoned Horobetsu mine in Hokkaido, Japan, contains arsenic and iron ions; total arsenic ca.10ppm, As(III) ca. 8.5ppm, total iron 379ppm, ferrous iron 266ppm, pH1.8. Arsenic occurs mostly as arsenite (As (III)) or arsenate (As (V)) in natural water. As(III) is more difficult to be remove than As(V), and it is necessary to oxidize As(III) to As(V) for effective removal. 5mL of the mine drainage or its filtrate through the membrane filter (pore size 0.45 mu m) were added to arsenite solutions (pH1.8) with the concentration of 5ppm. After the incubation of 30 days, As(III) was oxidized completely with the addition of the mine drainage while the oxidation did not occur with the addition of filtrate, indicating the microbial oxidation of As(III). In this paper, we have investigated the microbial oxidation of As(III) in acid water below pH2.0. |
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0-87339-642-1 |
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Aug 27-31; Treatment of acid mine drainage containing iron ions and arsenic for utilization of the sludge; Isip:000241817200032; Conference Paper Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17456 |
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151 |
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Author |
Murdock, D.J. |
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Title |
Treatment of acid mine drainage by the high density sludge process |
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1995 |
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Sudbury '95 – Mining and the Environment, Conference Proceedings, Vols 1-3 |
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431-439 |
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mine water treatment |
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Treatment of acid mine drainage by the high density sludge process; Isip:A1995bg39j00043; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 8883 |
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142 |
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