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O'Sullivan, A.D.; McCabe, O.M.; Murray, D.A.; Otte, M.L. |
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Title |
Wetlands for rehabilitation of metal mine wastes |
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1999 |
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Biology and Environment-Proceedings of the Royal Irish Academy |
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99b |
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1 |
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11-17 |
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Keywords |
mine water treatment |
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Abstract |
Aspects of research work undertaken by the Wetland Ecology Research Group at University College Dublin are summarised here. Wastes from mining activities generally contain high concentrations of heavy metals and other toxic substances. Reclamation methods to treat these wastes include the use of wetlands, for revegetation of mine tailings under flooded conditions and for the treatment of tailings water. Both natural and constructed wetlands are frequently employed for the treatment of mine wastes. Through a complex array of plant, soil and microbial interactions contaminants, such as heavy metals and sulphates, can be successfully removed from wastewater. Suitable vegetation can stabilise the tailings sediment, thereby preventing it from being dust-blown or leached into the surrounding environment. Our research suggests that these two techniques for treatment of mine wastes are successful and economically viable. |
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Wetlands for rehabilitation of metal mine wastes; Wos:000083281300003; Times Cited: 4; ISI Web of Science |
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CBU @ c.wolke @ 17127 |
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130 |
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Author |
Govind, R. |
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Title |
Treatment of acid mine drainage using membrane bioreactors |
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Journal Article |
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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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Scholz, M. |
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Performance comparison of experimental constructed wetlands with different filter media and macrophytes treating industrial wastewater contaminated with lead and copper |
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2002 |
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Bioresource Technology |
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83 |
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2 |
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71-79 |
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mine water treatment |
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The aim of this study was to investigate the treatment efficiency of passive vertical-flow wetland filters containing different macrophytes (Phragmites and/or Typha) and granular media with different adsorption capacities. Gravel, sand, granular activated carbon, charcoal and Filtralite (light expanded clay) were used as filter media. Different concentrations of lead and copper sulfate were added to polluted urban stream inflow water to simulate pretreated mine wastewater. The relationships between growth media, microbial and plant communities as well as the reduction of predominantly lead, copper and five-day biochemical oxygen demand (BOD5) were investigated. An analysis of variance showed that concentration reductions (mg 1(-1)) of lead, copper and BOD5 were significantly similar for the six experimental wetlands. Microbial diversity was low due to metal pollution and similar for all filters. There appears to be no additional benefit in using adsorption media and macrophytes to enhance biomass performance during the first 10 months of operation. (C) 2002 Elsevier Science Ltd. All rights reserved. |
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Performance comparison of experimental constructed wetlands with different filter media and macrophytes treating industrial wastewater contaminated with lead and copper; Wos:000175574600001; Times Cited: 5; ISI Web of Science |
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CBU @ c.wolke @ 17031 |
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121 |
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Author |
Dugan, P.R. |
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Title |
Prevention of formation of acid drainage from high-sulfur coal refuse by inhibition of iron- and sulfur-oxidizing microorganisms. II. Inhibition in run of mine refuse under simulated field conditions |
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1987 |
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Biotechnol. Bioeng. |
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29 |
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1 |
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6 |
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mine water treatment Chemistry Biochemistry and Biotechnology |
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0006-3592 |
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Jan; Prevention of formation of acid drainage from high-sulfur coal refuse by inhibition of iron- and sulfur-oxidizing microorganisms. II. Inhibition in run of mine refuse under simulated field conditions; New York, NY [u.a.] : Wiley; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7028.pdf; Opac |
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CBU @ c.wolke @ 7028 |
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80 |
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Author |
Scholz, M. |
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Mature experimental constructed wetlands treating urban water receiving high metal loads |
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2002 |
Publication |
Biotechnology Progress |
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18 |
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6 |
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1257-1264 |
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mine water treatment |
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The aim was to assess over 2 years the treatment efficiencies of vertical-flow wetland filters containing macrophytes and granular media of different. adsorption capacities. Different concentrations of lead and copper sulfate (constant for 1 year each) were added to urban beck inflow water in order to simulate pretreated (pH adjustment assumed) mine wastewater. After 1 year of operation, the inflow concentrations for lead and copper were increased from 1.30 to 2.98 and from 0.98 to 1.93 mg/L, respectively. However, the metal mass load rates (mg/m(2)/d) were increased by a factor of approximately 4.9 for lead and 4.3 for copper. No breakthrough of metals was recorded. Lead and copper accumulated in the biomass of the litter zone and rhizomes of the macrophytes. Furthermore, microbiological activity decreased during the second year of operation. Bioindicators such as ciliated protozoa and zooplankton decreased sharply in numbers but diatoms increased. In conclusion, the use of macrophytes and, adsorption media did not significantly enhance the filtration of lead and copper. Particulate lead is removed by filtration processes including straining. Furthermore, some expensive and time-consuming water quality variables can be predicted with less expensive ones such as temperature in order to reduce sampling costs. |
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Mature experimental constructed wetlands treating urban water receiving high metal loads; Wos:000179760000018; Times Cited: 11; ISI Web of Science |
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CBU @ c.wolke @ 17032 |
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119 |
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