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Bowell, R.J. |
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Title |
Sulphate and salt minerals; the problem of treating mine waste |
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Journal Article |
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2000 |
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Mining Environmental Management |
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8 |
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3 |
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11-13 |
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acid mine drainage; acidification; decontamination; discharge; dissolved materials; ecology; effluents; geomembranes; lime; mines; pollution; precipitation; protection; recycling; reverse osmosis; soils; surface water; suspended materials; toxic materials; waste disposal; waste management 22, Environmental geology |
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0969-4218 |
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Sulphate and salt minerals; the problem of treating mine waste; 2000-062783; illus. incl. 4 tables United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5834 |
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440 |
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Author |
Bernoth, L.; Firth, I.; McAllister, P.; Rhodes, S. |
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Title |
Biotechnologies for Remediation and Pollution Control in the Mining Industry |
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Journal Article |
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2000 |
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Miner. Metall. Process. |
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17 |
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2 |
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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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CBU @ c.wolke @ 17307 |
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450 |
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Author |
Mitchell, P. |
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Title |
Silica micro encapsulation: An innovative commercial technology for the treatment of metal and radionuclide contamination in water and soil |
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Journal Article |
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2000 |
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Environmental Issues and Management of Waste in Energy and Mineral Production |
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307-314 |
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mine water treatment |
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Klean Earth Environmental Company (KEECO) has developed the Silica Micro Encapsulation (SME) technology to treat heavy metals and radionuclides in water and soil. Unlike conventional neutralization/precipitation methods, SME encapsulates the contaminants in a permanent silica matrix resistant to degradation under even extreme environmental conditions. Encapsulated metals and radionuclides are effectively immobilized, minimising the potential for environmental contamination and impacts on human or ecosystem health. The effectiveness of SME has been proven through independent reviews, laboratory and field trials and commercial contracts, and the technology can be used to control and prevent acid drainage and the transport of soluble metals from mine sites, tailings areas, landfills and industrial sites. Successful demonstrations in the treatment of sediments and in brownfield redevelopment, treatment of metal-finishing wastewaters, and control of hazardous, low-level, and mixed waste at DOE/DOD sites and commercial nuclear power plants have also been undertaken. This paper describes the reactions involved in the SME process, the methods by which SME chemicals are introduced to various media, and recent project applications relevant to the cost effective remediation and prevention of environmental problems arising from energy and mineral production. |
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Silica micro encapsulation: An innovative commercial technology for the treatment of metal and radionuclide contamination in water and soil; Isip:000088357300049; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17088 |
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174 |
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Groudev, S.N.; Georgiev, P.S.; Spasova, I.I.; Nicolova, M.N. |
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In situ treatment of mine waters by means of a permeable barrier |
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2000 |
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Groundwater 2000 |
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417-418 |
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mine water treatment |
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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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Author |
Turek, M. |
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Title |
Recovery of NaCl from saline mine water in the ED-MSF system |
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Journal Article |
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Year |
2000 |
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8th World Salt Symposium, Vols 1 and 2 |
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471-475 |
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mine water treatment |
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A considerable part of water obtained by drainage of Polish coal-mines is saline which creates substantial ecological problems. The load of salt (mainly sodium chloride) amounts to 5 min t/year. Despite the utilisation of saline coalmine waters is considered to be the most adequate method of solving ecological problems caused by this kind of water in Poland there are only two installations utilising coal-mine waters and producing 100,000 t salt per year. In the case of the most concentrated waters, the so-called coal-mine brines, the method of concentrating by evaporation in twelve-stage expansion installation or vapour compression is applied, after which sodium chloride is manufactured. In the case of low salinity waters they are preconcentrated first by RO method. High energy consumption in above-mentioned methods of evaporation is a considerable restriction in the utilisation of coal-mine brines. An obstacle in the application of low energy evaporation processes, e.g. multi-stage flash, is the high concentration of calcium and sulphate ions in the coal-mine waters. |
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978-0-444-50065-6 |
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May; Recovery of NaCl from saline mine water in the ED-MSF system; Isip:000088786800075; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17092 |
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172 |
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