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Ziemkiewicz, P.F.; Skousen, J.G.; Simmons, J. |
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Title |
Long-term Performance of Passive Acid Mine Drainage Treatment Systems |
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Journal Article |
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Year |
2003 |
Publication |
Mine Water Env. |
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22 |
Issue |
3 |
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118-129 |
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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 |
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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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1025-9112 |
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Long-term Performance of Passive Acid Mine Drainage Treatment Systems; 1; FG 1 Abb., 7 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17454 |
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187 |
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Author |
Banks, S.B. |
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Title |
The UK coal authority minewater-treatment scheme programme: Performance of operational systems |
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Year |
2003 |
Publication |
Jciwem |
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17 |
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2 |
Pages |
117-122 |
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Keywords |
mine water treatment |
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This paper summarises the performance of minewater-treatment schemes which are operated under the Coal Authority's National Minewater Treatment Programme. Commonly-used design criteria and performance indicators are briefly discussed, and the performance of wetland systems which are operated by the Coal Authority is reviewed. Most schemes for which data are available remove more than 90% iron, and average area-adjusted iron-removal rates range from 1.5 to 5.5 g Fe/m(2). d. These values, which are based on performance calculations, can be distorted by several factors, including the practice of maximising wetland areas to make best use of available land. Removal rates are limited by influent iron loadings, and area-adjusted iron-removal rates should be used with caution when assessing wetland performance. Sizing criteria for all types of treatment system might be refined if more detailed data become available. |
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0951-7359 |
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May; The UK coal authority minewater-treatment scheme programme: Performance of operational systems; Wos:000183641000009; Times Cited: 1; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10018.pdf; ISI Web of Science |
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CBU @ c.wolke @ 17457 |
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9 |
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Laine, D.M.; Jarvis, A.P. |
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Title |
Engineering design aspects of passive in situ remediation of mining effluents |
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2003 |
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Land Contam. Reclam. |
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11 |
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2 |
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113-126 |
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Groundwater problems and environmental effects Pollution and waste management non radioactive waste management pyrite iron sulfide remediation mine drainage effluent |
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Passive treatment of contaminated effluents can offer a 'low cost' management opportunity to remediate drainages to the standards required by enforcement agencies. However, the initial cost of construction of passive treatment systems is significant and often in excess of that for active treatment systems. It is therefore important that the engineering design of the passive systems produces an effective and efficient scheme to enable the construction and maintenance costs to be minimised as far as possible. Possible parameters for the design of passive systems are suggested to seek to obtain uniformity in size and layout of treatment elements where this may be possible. Passive treatment systems include aeration systems, sedimentation ponds, aerobic and anaerobic wetlands, anoxic limestone drains and reducing alkalinity producing systems. Most active treatment systems also include passive elements in the treatment stream. The basic design considerations that should be considered to ensure the construction of efficient systems are discussed. |
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D.M. Laine, IMC Consulting Engineers, PO Box 18, Sutton-in-Ashfield NG17 2NS, United Kingdom |
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0967-0513 |
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Engineering design aspects of passive in situ remediation of mining effluents; 2530416; United-Kingdom 22; Geobase |
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CBU @ c.wolke @ 17523 |
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60 |
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Author |
Beck, P. |
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Title |
CL:AIRE – Providing support for remediation research |
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Journal Article |
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2003 |
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Land Contam. Reclam. |
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11 |
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2 |
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99-104 |
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Groundwater problems and environmental effects Pollution and waste management non radioactive geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) contaminated land remediation guideline acid mine drainage hydrochemistry |
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CL:AIRE (Contaminated Land: Applications in Real Environments) is a public-private partnership which was established in 1999 to encourage the demonstration of remediation research and technologies on contaminated sites throughout the UK. Project proposals are submitted to CL:AIRE and reviewed and approved by the CL:AIRE Technology & Research Group. CL:AIRE provides independent verification of its projects and plays a crucial role in the dissemination of project information. During the course of the project, progress is reported through the newsletter, CL:AIRE view, which is mailed free of charge to a database of more than 4500 stakeholders with an interest in contaminated land. Progress is also tracked on the CL:AIRE website at www.claire.co.uk. On completion of the project, a project report is published and a one page summary fact sheet is prepared. The fact sheet is distributed to our database subscribers and posted on the website. The project is also presented at the CL:AIRE Annual Project Conference. In addition, aspects of the research which have practical application will be published as CL:AIRE Research Bulletins. Acid mine waters discharging from abandoned mines represent a significant environmental problem in many parts of the UK. Considerable research has been carried out to understand the geochemical process involved, and the knowledge has been used to manage groundwater discharge through physical/chemical treatment and constructed wetlands. CL:AIRE supports the development of a national site for wetland research managed by the University of Newcastle and will encourage collaborative research projects to be submitted through CL:AIRE. CL:AIRE is currently supporting two projects which demonstrate remediation of acid mine drainage and is disseminating the results of this and other research to improve confidence in the use of these techniques. |
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P. Beck, CL:AIRE, 1 Great Cumberland Place, London W1H 7AL, United Kingdom |
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0967-0513 |
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CL:AIRE – Providing support for remediation research; 2530414; United-Kingdom 2; Geobase |
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CBU @ c.wolke @ 17524 |
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461 |
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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Design aspects of passive in situ remediation schemes for minign & industrial effluents |
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Journal Article |
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2003 |
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Tübinger Geowissenschaftliche Arbeiten |
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C68 |
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95-113 |
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mine water passive treatment |
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0935-4948 |
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Design aspects of passive in situ remediation schemes for minign & industrial effluents; 1; FG 1 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9759 |
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319 |
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