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Baker, K.A.; Fennessy, M.S.; Mitsch, W.J. |
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Title |
Designing wetlands for controlling coal mine drainage: an ecologic- economic modelling approach |
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Year |
1991 |
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Ecological Economics |
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3 |
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1 |
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1-24 |
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mine drainage economic cost iron removal simulation model ecotechnology modelling approach treatment efficiency wetland design wastewater treatment USA Alabama USA Tennessee USA Ohio |
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A simulation model is developed of the efficiency and economics of an application of ecotechnology – using a created wetland to receive and treat coal mine drainage. The model examines the role of loading rates of iron on treatment efficiencies and the economic costs of wetland versus conventional treatment of mine drainage. It is calibrated with data from an Ohio wetland site and verified from multi-site data from Tennessee and Alabama. The model predicts that iron removal is closely tied to loading rates and that the cost of wetland treatment is less than that of conventional for iron loading rates of approximately 20-25 g Fe m “SUP -2” day “SUP -1” and removal efficiencies less than 85%. A wetland to achieve these conditions would cost approximately US$50 000 per year according to the model. When higher loading rates exist and higher efficiencies are needed, wetland systems are more costly than conventional treatment. -Authors |
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Third author School of Natural Resources & Environmental Biology Program, Ohio State Univ., Columbus, OH 43210-1085, USA |
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0921-8009 |
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Mar.; Designing wetlands for controlling coal mine drainage: an ecologic- economic modelling approach; (0882174); 91h-08506; Using Smart Source Parsing pp; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10684.pdf; Geobase |
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CBU @ c.wolke @ 17570 |
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38 |
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Kalin, M.; Cairns, J.; McCready, R. |
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Title |
Ecological engineering methods for acid mine drainage treatment of coal wastes |
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1991 |
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Resources, conservation and recycling |
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5 |
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2-3 |
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265-275 |
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The treatment of acid mine drainage (AMD) through the utilization of alkali generating microbes has potential as an alternate approach to conventional lime treatment. Organic matter, a source of fixed carbon for the alkali generating microbial ecosystem, has been tested in 6 different types of AMD. The AMD characteristics range in acidities from 2 mg/l to 900 mg/l (CaCO3 equivalent), while sulphate concentrations range from 75 to 7300 mg/l. Alkali generating populations identified include iron reducers, sulphate reducers and ammonifiers. In coal AMD amended with organic matter, the microbial alkali generation is dominated by ammonifiers. Concentrations of Al, Fe and Zn in the AMD water decreased with concurrent increases in pH (3.2 to 6.5) in localized areas in the test cells. |
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Ecological engineering methods for acid mine drainage treatment of coal wastes; Science Direct |
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CBU @ c.wolke @ 17276 |
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39 |
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Skousen, J.G. |
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An Evaluation Of Acid-Mine Drainage Treatment Systems And Costs |
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1991 |
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Environmental Management for the 1990s |
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173-178 |
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mine water treatment |
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An Evaluation Of Acid-Mine Drainage Treatment Systems And Costs; Isip:A1991bs89e00024; Times Cited: 0; ISI Web of Science |
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CBU @ c.wolke @ 9041 |
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148 |
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Skousen, J.G. |
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Anoxic limestone drains for acid mine drainage treatment |
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1991 |
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Green Lands |
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21 |
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4 |
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30-35 |
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ALD passive treatment |
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0888-3408 |
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Anoxic limestone drains for acid mine drainage treatment; 9; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9905 |
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244 |
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Perry, A.; Kleinmann, R.L.P. |
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The use of constructed wetlands in the treatment of acid mine drainage |
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1991 |
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Natural Resources Forum |
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15 |
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3 |
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178-184 |
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quality standard water treatment constructed wetland pond system acid mine drainage USA 1 Geography |
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US government regulations require that all effluents from industrial operations, including mining, meet certain water quality standards. Constructed wetlands have proven to be useful in helping to attain those standards. Application of this biotechnology to mine water drainage can reduce water treatment costs and improve water quality in streams and rivers adversely affected by acidic mine water drainage from abandoned mines. Over 400 constructed wetland water treatment systems have been built on mined lands largely as a result of research by the US Bureau of Mines. Wetlands are passive biological treatment systems that are relatively inexpensive to construct and require minimal maintenance. Chemical treatment costs are reduced sufficiently to repay the cost of construction in less than a year. The mine waste water is typically treated in a series of excavated ponds that resemble small marsh areas. The ponds are engineered to facilitate bacterial oxidation of iron. Ideally, the water then flows through a composted organic substrate supporting a population of sulphate-reducing bacteria which raises the pH. Constructed wetlands in the US are described – their history, functions, construction methodologies, applicabilities, limitations and costs. -Authors |
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US Department of the Interior, Bureau of Mines, 2401 E Street, NW Washington, DC 20241, USA |
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The use of constructed wetlands in the treatment of acid mine drainage; (0895945); 92h-01979; Using Smart Source Parsing pp; Geobase |
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CBU @ c.wolke @ 17569 |
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272 |
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