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Kingham, N.W.; Semenak, R.; Powell, G.; Way, S. |
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Reverse osmosis coupled with chemical precipitation treatment of acid mine leachate at the Basin-Luttrell Pit, Ten Mile Creek Site, Lewis and Clark County, Montana Hardrock mining 2002; issues shaping the industry |
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2002 |
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acid mine drainage; Basin-Luttrell Pit; cost; environmental effects; leachate; Lewis and Clark County Montana; metals; Montana; osmosis; pollutants; pollution; precipitation; reverse osmosis; soils; sulfates; tailings; Ten Mile Creek; United States; waste rock; waste water; water treatment 22, Environmental geology |
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Reverse osmosis coupled with chemical precipitation treatment of acid mine leachate at the Basin-Luttrell Pit, Ten Mile Creek Site, Lewis and Clark County, Montana Hardrock mining 2002; issues shaping the industry; GeoRef; English; 2007-046128; Hardrock mining 2002; issues shaping the industry, Westminster, CO, United States, May 7-9, 2002 U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States |
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CBU @ c.wolke @ 5610 |
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331 |
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Demin, O.A.; Dudeney, A.W.L.; Tarasova, I.I. |
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Remediation of Ammonia-rich Minewater in Constructed Wetlands |
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2002 |
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Environ. Technol. |
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23 |
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5 |
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497-514 |
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constructed wetlands reed beds ammonia removal nitrification woolley colliery horizontal subsurface flow nitrate removal waste-water denitrification nitrification |
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A three-year study of ammonia removal from minewater was carried out employing constructed wetland systems (surface flow wetland and subsurface flow wetland cells) at the former Woolley Mine in West Yorkshire, UK The 1.4 Ha surface flow wetland (constructed in 1995) reduced the ammonia concentration from 3.5 – 4.5 mg l(-1) to < 2 3 mg V during the first half of the study and to essentially zero in the last year (2000 – 2001). About 25 % of contained ammonia was converted to nitrate, about 10 % was consumed by the plants and up to 30 % was converted to nitrogen gas. This maturation effect was attributed to increased depth of sludge from sedimentation of ochre, providing increased surface area for immobilisation of ammonia oxidising bacteria. The surface flow wetland finally removed 23 g m(-2) day(-1) ammonia in comparison with 3.8 g m(-2) day' for the subsurface flow (pea gravel) wetland cells, constructed for the present work and dosed with ammonium salts. Removal of ammonia by both systems was consistent with well-established mechanisms of nitrification and denitrification. It was also consistent with ammonia removal in wastewater wetland systems, although the greater aeration in the minewater systems obviated the need for special aeration cycles. The general role of wetland plants in such aerated conditions was attributed to maintaining hydraulic conditions (such as hydraulic efficiency and hydraulic resistance of substratum in subsurface flow systems) in the wetlands and providing a suspended solids filter for minewater. |
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0959-3330 |
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Remediation of Ammonia-rich Minewater in Constructed Wetlands; Isi:000176238900002; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17328 |
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405 |
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Scharp, R.A.; Kawahara, F.; Burckle, J.; Allan, J.; Govind, R. |
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Recovery of metals from acid mine drainage Hardrock mining 2002; issues shaping the industry |
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2002 |
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acid mine drainage; bacteria; Berkeley Pit; Butte Montana; cost; decontamination; metals; mining; Montana; pH; pollution; recovery; remediation; Silver Bow County Montana; smelting; sulfates; United States 22, Environmental geology |
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Recovery of metals from acid mine drainage Hardrock mining 2002; issues shaping the industry; GeoRef; English; 2007-046147; Hardrock mining 2002; issues shaping the industry, Westminster, CO, United States, May 7-9, 2002 U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States |
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CBU @ c.wolke @ 5614 |
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251 |
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Johnson, D.B.; Hallberg, K.B. |
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Pitfalls of passive mine water treatment |
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2002 |
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Reviews in Environmental Science & Biotechnology |
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1 |
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5 |
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335-343 |
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acid mine drainage acidophilic microorganisms heavy metals iron oxidation iron reduction remediation sulfate reduction wetlands Wheal Jane |
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Passive (wetland) treatment of waters draining abandoned and derelict mine sites has a number of detrac-tions. Detailed knowledge of many of the fundamental processes that dictate the performance and longevity of constructed systems is currently very limited and therefore more research effort is needed before passive treatment becomes an “off-the-shelf” technology. |
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1569-1705 |
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Dec.; Pitfalls of passive mine water treatment; 2; FG als Datei vorhanden 4 Abb., 1 Tab.; VORHANDEN | AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 10138 |
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336 |
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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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