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Agency, U.S.E.P. |
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Electrochemical treatment of acid mine waters |
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Journal Article |
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1972 |
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81 |
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Electrochemical treatment of acid mine waters; Washington: U.S. Environmental Protection Agency; Opac |
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CBU @ c.wolke @ 6967 |
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491 |
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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Engineering design aspects of passive in situ remediation of mining effluents |
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Journal Article |
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2003 |
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Land Contam. Reclam. |
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11 |
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2 |
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113-126 |
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Groundwater problems and environmental effects Pollution and waste management non radioactive waste management pyrite iron sulfide remediation mine drainage effluent |
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Passive treatment of contaminated effluents can offer a 'low cost' management opportunity to remediate drainages to the standards required by enforcement agencies. However, the initial cost of construction of passive treatment systems is significant and often in excess of that for active treatment systems. It is therefore important that the engineering design of the passive systems produces an effective and efficient scheme to enable the construction and maintenance costs to be minimised as far as possible. Possible parameters for the design of passive systems are suggested to seek to obtain uniformity in size and layout of treatment elements where this may be possible. Passive treatment systems include aeration systems, sedimentation ponds, aerobic and anaerobic wetlands, anoxic limestone drains and reducing alkalinity producing systems. Most active treatment systems also include passive elements in the treatment stream. The basic design considerations that should be considered to ensure the construction of efficient systems are discussed. |
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D.M. Laine, IMC Consulting Engineers, PO Box 18, Sutton-in-Ashfield NG17 2NS, United Kingdom |
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0967-0513 |
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Engineering design aspects of passive in situ remediation of mining effluents; 2530416; United-Kingdom 22; Geobase |
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CBU @ c.wolke @ 17523 |
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60 |
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King, T.V.V. |
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Environmental considerations of active and abandoned mine lands: lessons from Summitville, Colorado |
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1995 |
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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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Author |
Crawford, G.A. |
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Title |
Environmental Improvements by the Mining-industry in the Sudbury Basin of Canada |
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Journal Article |
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1995 |
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J. Geochem. Explor. |
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52 |
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1-2 |
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267-284 |
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mine water |
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Responsible mining companies have done much to redress the environmental damage of earlier technologies and continue to do more. In the Sudbury Basin, one of the most important mining areas in the world, both Inco Limited and Falconbridge Limited, two of the largest nickel producers, have significantly decreased sulphur dioxide emissions in the last 40 years from substantially 100% to about 10% or less of the sulphur in the ore; decreased water effluents by recycling; treated effluents to comply with government regulations; revegetated mine rock and surface tailings deposits and rehabilitated landscapes in the surrounding communities. Inco and Falconbridge continue to develop improved means for environmentally sound handling of all wastes including recycling and to reclaim land at abandoned mine sites. They have developed and implemented environmental policies and codes of practice, not only to comply with regulations, but to anticipate them. The mining industry recognizes the need for regulation to protect human health and the environment. Existing regulations are based on a hazard assessment approach. A more realistic, pragmatic and cost-effective basis for regulation is risk management. This relates any documented effects to measured exposures and recognizes the need for exposure levels low enough that incidence of adverse health effects is as low as in the surrounding ecosystem. |
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0375-6742 |
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Environmental Improvements by the Mining-industry in the Sudbury Basin of Canada; Isi:A1995qp96600025; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 17631 |
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410 |
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Author |
Bauroth, M.; Hähne, R.; Wolf, J. |
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Erfahrungen bei der Dekontamination saurer Wässer des Uranbergbaus mittels Einbindung in Kraftwerksaschen. Decontamination of acit water from uranium mining by ash filtration method |
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1991 |
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Neue Bergbautechnik |
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12 |
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420-422 |
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Bergbau Uranerz Grubenentwaesserung Chemische-Abwasserreinigung Asche Calciumcarbonat Verrieselungsfeld Dekontamination |
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Kontaminierte Grubenwässer des Uranbergbaus in Sachsen und Thüringen weisen eine regional schwankende chemische Zusammensetzung auf (Härte: 50 bis 1500 (Grad) dH, Sulfat: 2 bis 30 g/l, Eisen: 0,5 bis 4 g/l, Uranium: 1 bis 20 mg/l). Eine erfolgreich praktizierte Technologie der Abwasserreinigung ist dessen Verrieselung auf Kraftwerksaschen, die auf dichtem Untergrund bzw. dort, wo eine Grundwasserkontamination auszuschließen ist, aufgehaldet werden. Ziel ist es, den Nutzungsgrad der Asche zur Sicherung des Gewässerschutzes zu erhöhen. Eine geeignete Technologie ist dabei auch die Mischung von Asche und Kalk. Da die berieselte Asche bei der Einwirkung von natürlichen Niederschlägen ihre Kontamination teilweise wieder freisetzt, werden an die Verwahrung sowie Deponiebeschaffenheit von Aschehalden besondere Anforderungen gestellt. So muß beispielsweise die Verdunstung erhöht (Bewuchs, Vegetation) sowie die Dränage der infiltrierte Wässer verzögert werden. |
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SDAG Wismut, Chemnitz, DE |
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Erfahrungen bei der Dekontamination saurer Wässer des Uranbergbaus mittels Einbindung in Kraftwerksaschen. Decontamination of acit water from uranium mining by ash filtration method; 2627, BERG , 01.01.92; Words: 342; U9201 0120 586; 3 Seiten, 3 Bilder, 2 Tabellen, 7 Quellen 3UX *Umweltbelastung, technik* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3BX *chemische Grundlagen* 3BW *Geowissenschaften, physik*; BERG, Copyright FIZ Technik e.V.; DE Deutsch |
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CBU @ c.wolke @ 17614 |
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463 |
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