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Author (down) Younger, P.L.
Title Minewater treatment using wetlands Type Journal Article
Year 1997 Publication Water and Environment Manager Abbreviated Journal
Volume 2 Issue 4 Pages 11
Keywords Wetlands and estuaries geographical abstracts: physical geography hydrology (71 6 8) wetlands mine drainage water treatment
Abstract Experiences gained by the UK Mining Industry and effluent treatment companies in theuse of wetlands for treating minewaters are discussed. Discharges from abandoned mines is a major cause of freshwater pollution in some regions. Key topics relating to the use of wetlands for minewater treatment will be discussed at a CIWEM conference in Newcastle on 5 September 1997.
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Notes Minewater treatment using wetlands; 0283405; Geobase Approved no
Call Number CBU @ c.wolke @ 10624 Serial 200
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Author (down) Ye, Z.H.; Whiting, S.N.; Qian, J.H.; Lytle, C.M.; Lin, Z.Q.; Terry, N.
Title Trace element removal from coal ash leachate by a 10-year-old constructed wetland Type Journal Article
Year 2001 Publication J. Environ. Qual. Abbreviated Journal
Volume 30 Issue 5 Pages 1710-1719
Keywords acid mine drainage; Alabama; ash; bioaccumulation; boron; cadmium; constructed wetlands; environmental analysis; environmental effects; iron; Jackson County Alabama; Juncus effusus; leachate; manganese; metals; pH; pollutants; pollution; remediation; soils; sulfur; trace elements; Typha latifolia; United States; vegetation; waste water; wetlands; Widows Creek; Widows Creek Steam Plant; zinc; Typha; Juncus 22, Environmental geology
Abstract This study investigated the ability of a 10-yr-old constructed wetland to treat metal-contaminated leachate emanating from a coal ash pile at the Widows Creek electric utility, Alabama (USA). The two vegetated cells, which were dominated by cattail (Typha latifolia L.) and soft rush (Juncus effusus L.), were very effective at removing Fe and Cd from the wastewater, but less efficient for Zn, S, B, and Mn. The concentrations were decreased by up to 99% for Fe, 91% for Cd, 63% for Zn, 61% for S, 58% for Mn, and 50% for B. Higher pH levels (>6) in standing water substantially improved the removing efficiency of the wetland for Mn only. The belowground tissues of both cattail and soft rush had high concentrations of all elements; only for Mn, however, did the concentration in the shoots exceed those in the belowground tissues. The concentrations of trace elements in fallen litter were higher than in the living shoots, but lower than in the belowground tissues. ne trace element accumulation in the plants accounted for less than 2.5% of the annual loading of each trace element into the wetland. The sediments were the primary sinks for the elements removed from the wastewater. Except for Mn, the concentrations of trace elements in the upper layer (0-5 cm) of the sediment profile tended to be higher than the lower layers (5-10 and 10-15 cm). We conclude that constructed wetlands are still able to efficiently remove metals in the long term (i.e., >10 yr after construction).
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ISSN 0047-2425 ISBN Medium
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Notes Aug 1; Trace element removal from coal ash leachate by a 10-year-old constructed wetland; 2002-017274; References: 33; illus. incl. 2 tables United States (USA); file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/5703.pdf; GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5703 Serial 76
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Author (down) Wiseman, I.M.; Edwards, P.J.; Rutt, G.P.
Title Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands Type Journal Article
Year 2003 Publication Land Contam. Reclam. Abbreviated Journal
Volume 11 Issue 2 Pages 221-230
Keywords Pollution and waste management non radioactive Groundwater problems and environmental effects Wetlands and estuaries geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) geographical abstracts: physical geography hydrology (71 6 8) coal mine recovery aquatic ecosystem constructed wetland water treatment mine drainage abandoned mine
Abstract Seven kilometres of the River Pelenna in South Wales were impacted for approximately 30 years by discharges from abandoned coal mines. Elevated iron and low pH caused significant ochreous staining and had detrimental effects on the river ecology. The River Pelenna Mine water project constructed a series of passive wetland treatment systems to treat these discharges. Monitoring of the performance and environmental benefits of these has been undertaken as part of an Environment Agency R&D project. This project has assessed the changes in water quality as well as monitoring populations of invertebrates, fish and birds between 1993 and 2001. Performance data from the wetlands show that on average the three systems are removing between 82 and 95% of the iron loading from the mine waters. In the rivers downstream, the dissolved iron concentration has dropped to below the Environmental Quality Standard (EQS) of 1 mg/L for the majority of the time. Increases in pH downstream of the discharges have also been demonstrated. Trout (Salmo trutta) recovered quickly following mine water treatment, returning the next year to areas that previously had no fish. Intermittent problems with overflows from the treatment systems temporarily depleted the numbers, but the latest data indicate a thriving population. The overflow problems and also background episodes of acidity have affected the recovery of the riverine invertebrates. However, there have been gradual improvements in the catchment, and in the summer of 2001 most sites held faunas which approached those found in unpolluted controls. Recovery of the invertebrate fauna is reflected in marked increases in the breeding success of riverine birds between 1996 and 2001. This study has shown that constructed wetlands can be an effective, low cost and sustainable solution to ecological damage caused by abandoned mine drainage.
Address I.M. Wiseman, Environment Agency Wales, 19 Penyfai Lane, Furnace, Llanelli SA15 4EL, United Kingdom
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ISSN 0967-0513 ISBN Medium
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Notes Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands; 2530429; United-Kingdom 25; Geobase Approved no
Call Number CBU @ c.wolke @ 17516 Serial 206
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Author (down) Wiseman, I.
Title Constructed wetlands for minewater treatment Type RPT
Year 2002 Publication Abbreviated Journal
Volume Issue Pages 125
Keywords Sewage Ecology Constructed wetlands — Wales Mineral industries — Waste disposal Mine water Water quality management — Wales Pelenna minewaters Water pollution & oil pollution Hydrology & limnology
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Publisher Environment Agency Place of Publication Bristol, England Editor
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Notes Constructed wetlands for minewater treatment; Opac Approved no
Call Number CBU @ c.wolke @ 7122 Serial 207
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Author (down) Wieder, R.K.
Title A survey of constructed wetlands for acid coal mine drainage treatment in the Eastern United States Type Journal Article
Year 1989 Publication Wetlands Abbreviated Journal
Volume 9 Issue 2 Pages 299-315
Keywords acid mine drainage; coal; Eastern U.S.; environmental geology; human activity; organic residues; Pennsylvania; pollution; reclamation; sedimentary rocks; United States; water quality; water treatment; wetlands 22 Environmental geology; 21 Hydrogeology
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ISSN 0277-5212 ISBN Medium
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Notes A survey of constructed wetlands for acid coal mine drainage treatment in the Eastern United States; 1990-040374; Dec References: 19; illus. incl. 4 tables United States (USA); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 6755 Serial 212
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