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Author |
Schueck, J.H. |
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Title |
Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone |
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Book Chapter |
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Year |
1995 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Guidebook for the Annual Field Conference of Pennsylvania Geologists, vol.60 Applied geology in the Lock Haven and Williamsport region, Clinton and Lycoming counties, northcentral Pennsylvania |
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9-12 |
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acid mine drainage; Babb Creek watershed; Blossburg coal basin; carbonate rocks; ground water; hydrology; limestone; Pennsylvania; pollution; remediation; sedimentary rocks; Tioga County Pennsylvania; United States; water wells; watersheds; wells 22, Environmental geology |
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Carnein, C.R.; Way, J.H. |
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Limestone diversion wells; a low-maintenance, cost-effective method for treating acid-mine drainage with limestone; GeoRef; English; 1996-018760; 60th annual field conference of Pennsylvania geologists, Williamsport, PA, United States, Oct. 5-7, 1995 References: 3; 1 table, sketch map |
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CBU @ c.wolke @ 6420 |
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77 |
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Author |
Kuyucak, N. |
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Title |
Mining, the Environment and the Treatment of Mine Effluents |
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Journal Article |
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1998 |
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Int. J. Environ. Pollut. |
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10 |
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2 |
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315-325 |
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mine water treatment acid mine drainage high density sludge lime neutralization mining environment passive treatment sulfate-reducing bacteria |
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The environmental impact of mining on the ecosystem, including land, water and air, has become an unavoidable reality. Guidelines and regulations have been promulgated to protect the environment throughout mining activities from start-up to site decommissioning. In particular, the occurrence of acid mine drainage (AMD), due to oxidation of sulfide mineral wastes, has become the major area of concern to many mining industries during operations and after site decommissioning. AMD is characterized by high acidity and a high concentration of sulfates and dissolved metals. If it cannot be prevented or controlled, it must be treated to eliminate acidity, and reduce heavy metals and suspended solids before release to the environment. This paper discusses conventional and new methods used for the treatment of mine effluents, in particular the treatment of AMD. |
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0957-4352 |
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Mining, the Environment and the Treatment of Mine Effluents; Isi:000078420600009; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17477 |
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56 |
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Srivastave, A.; Chhonkar, P.K. |
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Amelioration of coal mine spoils through fly ash application as liming material |
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2000 |
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J. Ind. Res. |
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59 |
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4 |
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309-313 |
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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) mitigation fly ash feasibility study acid mine drainage lime |
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The feasibility of fly ash as compared to lime to ameliorate the low pH of acidic coal mine spoils under controlled pot culture conditions are reported using Sudan grass (Sorghum studanens) and Oats (Avena sativa) as indicator crops. It is observed that at all levels of applications, fly ash and lime significantly increase the pH of mine spoils, available phosphorus, exchangeable potassium, available sulphur and also uptake of phosphorus, potassium, sulphur and oven-dried biomass of both these test crops. The fly ash significantly decreases the bulk density of coal mine spoils, but, there is no effect on bulk density due to lime application. However, when the spoils are amended with either fly ash or lime, the root growth occurs throughout the material. Fly ash and lime do not cause elemental toxicities to the plants as evidenced from the dry matter production by the test crops. The results indicate that fly ash to be a potential alternative to lime for treating acidic coal mine spoils. |
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P.K. Chhonkar, Div. of Soil Sci. and Agr. Chem., Indian Agricultural Research Inst., New Delhi 110 012, India |
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0022-4456 |
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Amelioration of coal mine spoils through fly ash application as liming material; 2364216; India 18; Geobase |
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CBU @ c.wolke @ 17535 |
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234 |
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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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2003 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Mine Water Env. |
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22 |
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3 |
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118-129 |
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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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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 |
Simmons, J.A.; Andrew, T.; Arnold, A.; Bee, N.; Bennett, J.; Grundman, M.; Johnson, K.; Shepherd, R. |
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Title |
Small-Scale Chemical Changes Caused by In-stream Limestone Sand Additions to Streams |
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Journal Article |
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2006 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Mine Water Env. |
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25 |
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4 |
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241-245 |
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acid mine drainage aluminum calcium limestone sand sediment stream liming West Virginia |
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In-stream limestone sand addition (ILSA) has been employed as the final treatment for acid mine drainage discharges at Swamp Run in central West Virginia for six years. To determine the small-scale longitudinal variation in stream water and sediment chemistry and stream biota, we sampled one to three locations upstream of the ILSA site and six locations downstream. Addition of limestone sand significantly increased calcium and aluminum concentrations in sediment and increased the pH, calcium, and total suspended solids of the stream water. Increases in alkalinity were not significant. The number of benthic macroinvertebrate taxa was significantly reduced but there was no effect on periphyton biomass. Dissolved aluminum concentration in stream water was reduced, apparently by precipitation into the stream sediment. |
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1025-9112 |
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Small-Scale Chemical Changes Caused by In-stream Limestone Sand Additions to Streams; 1; FG 4 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17420 |
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248 |
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