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| Author |
Fripp, J.; Ziemkiewicz, P.F.; Charkavorki, H. |
| Title |
Acid Mine Drainage Treatment |
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Journal Article |
| Year |
2000 |
Publication |
Ecosystem Management and Restoration Research Program Technical Notes |
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Erdc Tn-Emrrp-Sr-14 |
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7 |
| Keywords |
AMD treatment sampling |
Abstract  |
Contaminated water flowing from abandoned coal mines is one of the most significant contributors to water pollution in former and current coal-producing areas. Acid mine drainage (AMD) can have severe impacts to aquatic resources, can stunt terrestrial plant growth and harm wetlands, contaminate groundwater, raise water treatment costs, and damage concrete and metal structures. In the Appalachian Mountains of the eastern United States alone, more than 7,500 miles of streams are impacted. The Pennsylvania Fish and Boat Commission estimates that the economic losses on fisheries and recreational uses are approximately $67 million annually (ref). While most modern coal-mining operations (Figure 1) must meet strict environmental regulations concerning mining techniques and treatment practices, there are thousands of abandoned mine sites in the United States (Figure 2). Treatment of a single site can result in the restoration of several miles of impacted streams. The purpose of this document is to briefly summarize key issues related to AMD treatment. This document is intended as a brief overview; thus, it is neither inclusive nor exhaustive. The technical note presents the preliminary planning issues |
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Acid Mine Drainage Treatment; 2; als Datei vorhanden 5 Abb.; VORHANDEN | AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17344 |
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374 |
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| Author |
Aube, B.C. |
| Title |
Molybdenum treatment at Brenda Mines |
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Journal Article |
| Year |
2000 |
Publication |
ICARD 2000, Vols I and II, Proceedings |
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1113-1119 |
| Keywords |
mine water treatment |
| Abstract |
Brenda Mines, located 22 km Northwest of Peachland in British Columbia, Canada was an open pit copper-molybdenum mine which closed in 1990 after 20 years of operation. The primary concern in Brenda's tailings and waste rock drainage is molybdenum at a concentration of approximately 3 mg/L.. The mine drainage is alkaline and contains little or none of the typically problematic heavy metals. Given that the waters downstream are used for municipal water supply and some irrigation, a discharge limit of 0.25 mg/L molybdenum was imposed with specific water quality guidelines in the receiving creek. A. review of all existing and potential molybdenum removal methods was undertaken prior to mine closure. The chosen process is a two-step iron co-precipitation with clarification and sand filtration at a slightly acidic pH. A 4,000 usgpm (912 m(3)/h) treatment plant was constructed and commissioned in 1998, at a cost of $10.5M. The successful removal of molybdenum from the drainage water is explained with details on some design innovations and operational challenges encountered during plant start-up. Investigated sludge disposal options are discussed although the long term disposal scenario has not yet been finalised. |
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Molybdenum treatment at Brenda Mines; Isip:000169875500109; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17104 |
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167 |
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Bernoth, L.; Firth, I.; McAllister, P.; Rhodes, S. |
| Title |
Biotechnologies for Remediation and Pollution Control in the Mining Industry |
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Journal Article |
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2000 |
Publication |
Miner. Metall. Process. |
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17 |
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2 |
Pages |
105-111 |
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bioremediation pollution control soil contamination solvents oils diesel hydrocarbons cyanide acid rock drainage microbial mats manganese bioremediation oxidation drainage removal water algae |
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As biotechnologies emerge from laboratories into main-stream application, the benefits they, offer are judged against competing technologies and business criteria. Bioremediation technologies have passed this test and are now widely used for the remediation of contaminated soils and ground waters. Bioremediation includes several distinct techniques that are used for the treatment of excavated soil and includes other techniques that are used for in situ applications. They play an important and growingrole in the mining industry for cost-effective waste management and site remediation. Most applications have been for petroleum contaminants, but advances continue to be made in the treatment of more difficult organ ic and inorganic species. This paper discusses the role of biotechnologies in remediation and pollution control from a mining-industry perspective. Several case studies are presented, including the land application of oily wastewater from maintenance workshops, the composting of hydrocarbon-contaminated soils and sludges, the bioventing of hydrocarbon solvents, the intrinsic bioremediation of diesel hydrocarbons, the biotreatment of cyanide in water front a gold mine, and the removal of manganese from acidic mine drainage. |
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0747-9182 |
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Biotechnologies for Remediation and Pollution Control in the Mining Industry; Isi:000087094600005; AMD ISI | Wolkersdorfer |
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no |
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CBU @ c.wolke @ 17307 |
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450 |
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| Author |
Mustikkamaki, U.-P. |
| Title |
Metallipitoisten vesien biologisesta kasittelysta Outokummun kaivoksilla. Metal content treated with biological methods at the Outokummun operation |
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Journal Article |
| Year |
2000 |
Publication |
Vuoriteollisuus = Bergshanteringen |
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58 |
Issue |
1 |
Pages |
44-47 |
| Keywords |
acid mine drainage anaerobic environment bacteria biodegradation environmental analysis Europe filters Finland metals Outokummun Mine peat pollutants pollution reduction Scandinavia sediments sulfate ion Western Europe zinc 22, Environmental geology |
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Acid mine drainage (AMD) is one of the most serious environmental problems in the metal-mining industry. AMD is formed by the chemical and bacterial oxidation of sulphide minerals, and it is characterized by low pH values and high sulphate and metals content. The most common method to treat AMD is chemical neutralization. The chemical treatment requires high capital and operating costs and its use is problematic at the closed mines sites. Outokumpu has studied and used sulphate reducing bacteria (SRB) as an alternative method for the treatment of AMD. SRB existing in many natural anaerobic aqueous environments can reduce sulphate to sulphide which precipitates metals as extremely insoluble metal sulphides. Full scale experiments were begun in summer 1995 in the Ruostesuo open pit (depth 46 m) by adding liquid manure as a source of bacteria and press-juice as a growth substrate. The average Zn content of the whole column has decreased from 3,5 mg/l to 0,8 mg/l and below 25 m zinc is 0 mg/l. Similar results have been reached with nickel in the Kotalahti old nickel mine, where bacteria were brought in 1996. We have found that the same bacterial mechanism acts in peat-limestone filters, which Outokumpu has built at several mine sites since 1993. |
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0042-9317 |
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Metallipitoisten vesien biologisesta kasittelysta Outokummun kaivoksilla. Metal content treated with biological methods at the Outokummun operation; 2001-069868; illus. incl. 3 tables Finland (FIN); GeoRef; Finnish |
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no |
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CBU @ c.wolke @ 16560 |
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291 |
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Groudev, S.N.; Georgiev, P.S.; Spasova, I.I.; Nicolova, M.N. |
| Title |
In situ treatment of mine waters by means of a permeable barrier |
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Journal Article |
| Year |
2000 |
Publication |
Groundwater 2000 |
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417-418 |
| Keywords |
mine water treatment |
| Abstract |
Acid ground waters contaminated with radioactive elements (U, Ra, Th), toxic heavy metals (Cu, Zn, Cd, Mn, Fe), arsenic and sulphates were treated by means of a permeable barrier. The barrier was filled with a mixture of biodegradable solid organic substrates (spent mushroom compost, sawdust and cow manure) and was inhabited by a mixed microbial community consisting of sulphate-reducing bacteria and other metabolically interdependent microorganisms. An efficient removal of the pollutants was achieved by this barrier during the different climatic seasons, even at ambient temperatures close to degrees C. The microbial dissimilatory sulphate reduction and the sorption of pollutants by the organic matter in the barrier were the main processes involved in this removal. |
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In situ treatment of mine waters by means of a permeable barrier; Isip:000088384300185; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 8407 |
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173 |
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