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Author |
Wiessner, A. |
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Title |
The treatment of a deposited lignite pyrolysis wastewater by adsorption using activated carbon and activated coke |
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Journal Article |
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1998 |
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Colloids and Surfaces a-Physicochemical and Engineering Aspects |
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139 |
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1 |
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91-97 |
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mine water treatment |
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To study the functions of activated carbon and activated coke adsorption for the treatment of highly contaminated discolored industrial wastewater with a wide molecular size distribution of organic compounds, the deposited lignite pyrolysis wastewater from a filled open-cast coal mine was used for continuous and discontinuous experiments. |
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The treatment of a deposited lignite pyrolysis wastewater by adsorption using activated carbon and activated coke; Wos:000074411100012; Times Cited: 1; ISI Web of Science |
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CBU @ c.wolke @ 17147 |
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133 |
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Author |
Henderson, A. |
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Title |
The implementation of paste fill at the Henty Gold Mine |
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Journal Article |
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Year |
1998 |
Publication |
Minefill'98 |
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98 |
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1 |
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299-304 |
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mine water treatment |
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The Henty Gold Mine, located ill Western Tasmania uses innovative solutions to effectively manage a mining operation in an environmentally sensitive setting and has been presented with several environmental awards. Fill is required as part of the mining method to provide passive ground support, minimise rock exposure and ensure maximum recovery of the small but high-grade orebody. The use of the whole portion of leach residue in the backfill reduces the surface tailing disposal requirements. Therefore, High Density Paste Fill (HDPF) has been selected as the most appropriate fill method to meet these objectives. Additional benefits include the minimisation of excess water from fill and the subsequent need for the collection and treatment of water and slimes. There are minimal equipment requirements during placement, thereby optimising mine resources for production. |
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The implementation of paste fill at the Henty Gold Mine; Isip:000074225800048; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 17142 |
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181 |
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Burt, R.A.; Caruccio, F.T. |
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The effect of limestone treatments on the rate of acid generation from pyritic mine gangue |
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Journal Article |
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1986 |
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Environmental geochemistry and health |
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8 |
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8 |
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mine water treatment |
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Surface water enters the Haile Gold Mine, Lancaster County, South Carolina by means of a small stream and is ponded behind a dam and in an abandoned pit. This water is affected by acidic drainage. In spite of the large exposures of potentially acid producing pyritic rock, the flux of acid to the water is relatively low. Nevertheless, the resulting pH values of the mine water are low (around 3.5) due to negligible buffering capacity. In view of the observed low release of acidity, the potential for acid drainage abatement by limestone ameliorants appears feasible. This study investigated the effects of limestone treatment on acid generation rates of the Haile mine pyritic rocks through a series of leaching experiments. Below a critical alkalinity threshold value, solutions of dissolved limestone were found consistently to accelerate the rate of pyrite oxidation by varying degrees. The oxidation rates were further accelerated by admixing solid limestone with the pyritic rock. However, after a period of about a month, the pyrite oxidation rate of the admixed samples declined to a level lower than that of untreated pyrite. Leachates produced by the pyrite and limestone mixtures contained little if any iron. Further, in the mixtures, an alteration of the pyrite surface was apparent. The observed behaviour of the treated pyrite appears to be related to the immersion of the pyrite grains within a high alkalinity/high pH environment. The high pH increases the rate of oxidation of ferrous iron which results in a higher concentration of ferric iron at the pyrite surface. This, in turn, increases the rate of pyrite oxidation. Above a threshold alkalinity value, the precipitation of hydrous iron oxides at the pyrite surface eventually outpaces acid generation and coats the pyrite surface, retarding the rate of pyrite oxidation. |
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0269-4042 |
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Sept; The effect of limestone treatments on the rate of acid generation from pyritic mine gangue; London: Chapman & Hall; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7021.pdf; Opac |
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CBU @ c.wolke @ 7021 |
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14 |
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Author |
Murayama, T. |
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Title |
Application Of Immobilized Thiobacillus-Ferrooxidans For Large-Scale Treatment Of Acid-Mine Drainage |
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Journal Article |
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1987 |
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Methods Enzymol. |
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136 |
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530-540 |
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mine water treatment |
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Application Of Immobilized Thiobacillus-Ferrooxidans For Large-Scale Treatment Of Acid-Mine Drainage; Wos:A1987m167600047; Times Cited: 6; ISI Web of Science |
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CBU @ c.wolke @ 9106 |
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92 |
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Author |
Kothe, E. |
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Title |
Molecular mechanisms in bio-geo-interaactions: From a case study to general mechanisms |
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Journal Article |
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2005 |
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Chemie Der Erde-Geochemistry |
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65 |
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7-27 |
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mine water treatment |
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The understanding of molecular mechanisms in the cycling of elements in general is essential to our alteration of current processes. One field where such geochemical element cycles are of major importance is the prevention and treatment of acid mine drainage waters (AMD) which are prone to occur in every anthropogenic, modified landscape where sulfidic rock material has been brought to the surface during mine operations. Microbiologically controlled production of AMD leads not only to acidification, but at the same time the dissolution of heavy metals makes them bioavailable posing a potential ecotoxicological risk. The water path then can contaminate surface and ground water resources which leads to even bigger problems in large catchment areas. The investigation of mechanisms in natural attenuation has already provided first ideas for applications of naturally occurring bioremediation schemes. Especially an improved soil microflora can enhance the natural attenuation when adapted microbes are applied to contaminated areas. Future schemes for plant extraction, control of water efflux by increasing evapotranspiration, and by subsequent land use with agricultural plants with biostabilization and phytosequestration potential will provide putative control measures. The mechanisms in parts of these processes have been evaluated and the resulting synthesis applied to derive a bioremediation plan using the former uranium mine in Eastern Thuringia as a case study. (c) 2005 Elsevier GrnbH. All rights reserved. |
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Molecular mechanisms in bio-geo-interaactions: From a case study to general mechanisms; Wos:000233975000002; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 16965 |
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114 |
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