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Author Banks, S.B.
Title The Coal Authority Minewater Treatment Programme: An update on the performance of operational schemes Type Journal Article
Year 2003 Publication Land Contam. Reclam. Abbreviated Journal
Volume 11 Issue 2 Pages 161-164
Keywords Wetlands and estuaries Groundwater problems and environmental effects Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 8) geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) constructed wetland mine drainage water treatment pollutant removal United Kingdom
Abstract The performance of mine water treatment schemes, operated under the Coal Authority's national Minewater Treatment Programme, is summarised. Most schemes for which data are available perform successfully and remove over 90% iron. Mean area-adjusted iron removal rates for reedbed components of treatment schemes, range from 1.5 to 5.5 g Fe/m2, with percentage iron removal rates ranging from 68% to 99%. In the majority of cases, calculated area-adjusted removal rates are limited by influent iron loadings, and the empirical sizing criterion for aerobic wetlands, based on American removal rates of 10 g Fe/m2day, remains a valuable tool in the initial stages of treatment system design and estimation of land area requirements. Where a number of schemes have required modification after becoming operational, due consideration must always be given to the potential for dramatic increases in influent iron loadings, and to how the balance between performance efficiency and aesthetic appearance can best be achieved. Continual review and feedback on the performance of treatment systems, and the problems encountered during design implementation, will enhance the efficiency and effectiveness of the Minewater Treatment Programme within the UK.
Address S.B. Banks, Scott Wilson Kirkpatrick/Co. Ltd., Rose Hill West, Chesterfield S40 1JF, United Kingdom
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ISSN (up) 0967-0513 ISBN Medium
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Notes The Coal Authority Minewater Treatment Programme: An update on the performance of operational schemes; 2530421; United-Kingdom 4; Geobase Approved no
Call Number CBU @ c.wolke @ 17519 Serial 467
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Author Anonymous
Title Red menace -- Alumina waste products neutralised – As a result of the standard aluminium extraction process, a large amount of of highly alkaline 'red mud' is produced, containing various minerals left over from the bauxite, and this must be disposed of safely, treated or stored. Using a partial-neutralising process involving sea water, Virotec has developed an environmentally responsible process that turns the mud into a mild alkali that is very good at neutralising acid in, for example, acid mine waste Type Journal Article
Year 2003 Publication Materials world Abbreviated Journal
Volume 11 Issue 6 Pages 22-25
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ISSN (up) 0967-8638 ISBN Medium
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Notes Red menace -- Alumina waste products neutralised – As a result of the standard aluminium extraction process, a large amount of of highly alkaline 'red mud' is produced, containing various minerals left over from the bauxite, and this must be disposed of safely, treated or stored. Using a partial-neutralising process involving sea water, Virotec has developed an environmentally responsible process that turns the mud into a mild alkali that is very good at neutralising acid in, for example, acid mine waste; 1645797473; UB Clausthal <104> TU Freiberg <105> HSU Hamburg <705> TIB/UB Hannover <89> THULB Jena <27> UB Magdeburg <Ma 9> TUB München <91>; OLC-SSG Geowissenschaften – Online Contents-Sondersammelgebiete Approved no
Call Number CBU @ c.wolke @ 2109 Serial 480
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Author Taylor, J.; Waters, J.
Title Treating ARD; how, when, where and why Type Journal Article
Year 2003 Publication Mining Environmental Management Abbreviated Journal
Volume 11 Issue 3 Pages 6-9
Keywords acid mine drainage; acid rock drainage; acidification; alkalinity; carbonate rocks; chemical properties; chemical reactions; coal; disposal barriers; economics; flocculation; ground water; heavy metals; human activity; ion exchange; limestone; mines; oxidation; oxides; permeability; pollution; porosity; pyrolusite; remediation; sedimentary rocks; surface water; waste disposal; waste management; water pollution; water treatment; wetlands 22, Environmental geology
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ISSN (up) 0969-4218 ISBN Medium
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Notes Treating ARD; how, when, where and why; 2004-045038; References: 8; illus. incl. 2 tables United Kingdom (GBR); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5528 Serial 225
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Author Ziemkiewicz, P.F.; Skousen, J.G.; Simmons, J.
Title Long-term Performance of Passive Acid Mine Drainage Treatment Systems Type Journal Article
Year 2003 Publication Mine Water Env. Abbreviated Journal
Volume 22 Issue 3 Pages 118-129
Keywords acidity acid load aerobic wetlands anaerobic wetlands anoxic limestone drains limestone leach beds open limestone channels slag leach beds successive alkalinity producing systems vertical flow wetlands
Abstract State and federal reclamation programs, mining operators, and citizen-based watershed organizations have constructed hundreds of passive systems in the eastern U.S. over the past 20 years to provide reliable, low cost, low maintenance mine water treatment in remote locations. While performance has been reported for individual systems, there has not been a comprehensive evaluation of the performance of each treatment type for a wide variety of conditions. We evaluated 83 systems: five types in eight states. Each system was monitored for influent and effluent flow, pH, net acidity, and metal concentrations. Performance was normalized among types by calculating acid load reductions and removals, and by converting construction cost, projected service life, and metric tonnes of acid load treated into cost per tonne of acid treated. Of the 83 systems, 82 reduced acid load. Average acid load reductions were 9.9 t/yr for open limestone channels (OLC), 10.1 t/yr for vertical flow wetlands (VFW), 11.9 t/yr for anaerobic wetlands (AnW), 16.6 t/yr for limestone leach beds (LSB), and 22.2 t/yr for anoxic limestone drains (ALD). Average costs for acid removal varied from $83/t/yr for ALDs to $527 for AnWs. Average acid removals were 25 g/m2/day for AnWs, 62 g/m2/day for VFWs, 22 g/day/t for OLCs, 28 g/day/t for LSBs, and 56 g/day/t for ALDs. It appears that the majority of passive systems are effective but there was wide variation within each system type, so improved reliability and efficiency are needed. This report is an initial step in determining passive treatment system performance; additional work is needed to refine system designs and monitoring.
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ISSN (up) 1025-9112 ISBN Medium
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Notes Long-term Performance of Passive Acid Mine Drainage Treatment Systems; 1; FG 1 Abb., 7 Tab.; AMD ISI | Wolkersdorfer Approved no
Call Number CBU @ c.wolke @ 17454 Serial 187
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Author Adam, K.
Title Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites Type Journal Article
Year 2003 Publication Minerals and Energy Raw Materials Report Abbreviated Journal
Volume 18 Issue 4 Pages 25-35
Keywords Waste Management and Pollution Policy Pollution and waste management non radioactive geographical abstracts: human geography environmental planning (70 11 5) geological abstracts: environmental geology (72 14 2) waste disposal waste management solid waste mining industry acid mine drainage Europe Eurasia
Abstract Environmentally compatible Waste Management schemes employed by the European extractive industry for the development of new projects, and applied in operating sulphide mines, are presented in this study. Standard methodologies used to assess the geotechnical and geochemical properties of the solid wastes stemming from mining and processing of sulphidic metal ores are firstly given. Based on waste properties, the measures applied to ensure the environmentally safe recycling and disposal of sulphidic wastes are summarised. Emphasis is given on the novel techniques developed to effectively prevent and mitigate the acid drainage phenomenon from sulphidic mine wastes and tailings. Remediation measures taken to minimise the impact from waste disposal sites in the post-closure period are described.
Address K. Adam, ECHMES Ltd, Mikras Asias 40-42, Athens 11527, Greece echmes@otenet.gr
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ISSN (up) 1404-1049 ISBN Medium
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Notes Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites; 2582509; Norway 25; Geobase Approved no
Call Number CBU @ c.wolke @ 17510 Serial 492
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