Records |
Author |
Norton, P.J. |
Title |
The Control of Acid Mine Drainage with Wetlands |
Type |
Journal Article |
Year |
1992 |
Publication |
Mine Water Env. |
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Volume |
11 |
Issue |
3 |
Pages |
27-34 |
Keywords |
acid mine drainage construction chemistry artificial wetlands pollution control performance evaluation coal mines pollution control and prevention |
Abstract |
The recent increases in environmental legislation, especially in the USA'have meant that there is a need on behalf of the mining companies for more judicious operational planning and more thorough restoration techniques in order to reduce costs and prevent violation of the smctly enforced regulations. Water pollution is probably the greatest problem and many less enlightened operators, especially for example, in surface coal milling in Pennsylvania, have been forced into liquidation after having been unable to meet the severe restrictions on Acid Mine Drainage (AMD). The problems of AMD are also inherent in most forms of metalliferous and coal mining and also in some types of aggregate quarrying. As excavations go deeper in search of ever diminishing reserves then they are more likely to encounter groundwater which can become polluted if insufficient care is not taken. It is to be expected that the laws will also become more severe than they are at present in Europe and methods of treatment of AMD will need to be developed that are more efficient than the costly chemical methods currently used. Research by the author and others into the source of AMD pollution and its treatment with engineered wetlands and other operational methods are discussed in the paper. The methods have- the distinct benefit that they are cheap to install, are cost effective over a long period with the minimum of supervision and are environmentally acceptable to the planning and regulatory authorities. |
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The Control of Acid Mine Drainage with Wetlands; 1; 1 Abb.; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 17401 |
Serial |
284 |
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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 |
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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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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 |
McKenzie, R. |
Title |
Software Update to Better Predict Costs of Treating Mine Drainage |
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Journal Article |
Year |
2005 |
Publication |
Mine Water Env. |
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24 |
Issue |
4 |
Pages |
213-215 |
Keywords |
AMD prediction software |
Abstract |
The U.S. Office of Surface Mining (OSM) is updating a popular software program that helps government agencies and mine water practioners predict what it will cost to treat acid mine drainage (AMD). Developers expect to release the update, AMDTreat Version 4.0, before the end of 2005. The new version will offer additional tools, expanded features, and a better user interface. |
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1025-9112 |
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Software Update to Better Predict Costs of Treating Mine Drainage; 1; Fg; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17389 |
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303 |
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Author |
Novák, J. |
Title |
Groundwater Remediation in the Stráz Leaching Operation |
Type |
Journal Article |
Year |
2001 |
Publication |
Mine Water Env. |
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Volume |
20 |
Issue |
4 |
Pages |
158-167 |
Keywords |
Contamination Czech Republic groundwater in situ leaching remediation |
Abstract |
An area of the Czech Republic in the northeastern part of the Ceská Lípa district has been affected by “in situ” chemical mining of uranium. The risks associated with the contaminants have been assessed and a complex groundwater remediation project has been generated. The remediation alternatives for both the Cenomanian and Turonian aquifers are presented, relative to time requirements, economics, ecological considerations and the elimination of unacceptable risks for the population and environment. Finally, the present progress of remediation and a concept of what is necessary to complete remediation are presented. |
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1025-9112 |
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Groundwater Remediation in the Stráz Leaching Operation; 1; FG 10 Abb., 1 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17403 |
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281 |
Permanent link to this record |
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Author |
Janiak, H. |
Title |
Mine drainage treatment in Polish lignite mining |
Type |
Journal Article |
Year |
1992 |
Publication |
Mine Water Env. |
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Volume |
11 |
Issue |
1 |
Pages |
35-44 |
Keywords |
laboratory scale tests plants bogs biological filters open cut mining mine drainage filtration flocculation radiation particle size suspended solids water treatment water discharge field tests lignite mines poland mining and industrial water water treatment water quality |
Abstract |
The paper presents volumes and characteristics of water discharged from some Polish lignite open pit mines and discusses methods for its treatment. Results of research work concerned with increase in mine drainage efficiency by using processes of radiation, flocculation and filtration through a set of bog plants, iknown as grass filter are also discussed |
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Mine drainage treatment in Polish lignite mining; WATERLIT: 00526053 1 Abb., 3 Tab.; AMD ISI | Wolkersdorfer |
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Call Number |
CBU @ c.wolke @ 17356 |
Serial |
342 |
Permanent link to this record |