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Gusek, J.J. |
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Title |
Passive-treatment of acid rock drainage: what is the potential bottom line? |
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Journal Article |
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1995 |
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Min. Eng. |
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47 |
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3 |
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250-253 |
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mining acid drainage passive treatment system 3 Geology |
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Abstract |
Passive-treatment systems that mitigate acid-rock drainage from coal mines have been operating since the mid-1980s. Large systems at metal mines are being contemplated. A typical man-made passive-treatment-system can mimic a natural wetland by employing the same geochemical principles. Passive-treatment systems, however, are engineered to optimize the biogeochemical processes occurring in a natural wetland ecosystem. The passive-treatment methodology holds promise over chemical neutralization because large volumes of sludge are not generated. Metals may be precipitated as oxides, sulfides or carbonates in the passive-treatment system substrate. The key goal of a passive-treatment system is the long-term immobilization of metals in the substrate materials. The passive-treatment technique may not be applicable in all mine-drainage situations. -from Author |
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Knight-Piesold & Co, 1050 17th St., Suite 500, Denver, CO, 80265- 0550, USA |
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Passive-treatment of acid rock drainage: what is the potential bottom line?; (1121863); 95k-12693; Using Smart Source Parsing pp; Geobase |
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CBU @ c.wolke @ 17638 |
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365 |
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Author |
Reisinger, R.W.; Gusek, J. |
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Title |
Mitigation of water contamination at the historic Ferris-Haggarty Mine, Wyoming |
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Journal Article |
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Year |
1999 |
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Min. Eng. |
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51 |
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8 |
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49-53 |
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Reclamation and conservation Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 1) geomechanics abstracts: excavations (77 10 10) abandoned mine copper hydrogeology mine drainage United States Wyoming Ferris Haggarty Mine |
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An historic underground copper mine in Wyoming is discharging neutral but copper-laden water into a pristine creek. The EPA-deferred site qualifies for reclamation by the Wyoming Abandoned Mine Land (AML) program. The cleanup goal is to restore the discharge so that the creek can eventually support a trout fishery. Hydrological and geochemical investigations underground have suggested two sources of mine water: one clean and the other containing copper. Results of bench- and pilot-scale tests support the viability of using low-cost passive treatment techniques to reduce copper concentrations in the near-freezing mine discharge. |
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R.W. Reisinger, Knight Piesold LLC, Denver, CO, United States |
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0026-5187 |
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Mitigation of water contamination at the historic Ferris-Haggarty Mine, Wyoming; 0434643; United-States 5; Geobase |
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CBU @ c.wolke @ 17637 |
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263 |
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