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| Author |
Fripp, J.; Ziemkiewicz, P.F.; Charkavorki, H. |
| Title |
Acid Mine Drainage Treatment |
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Journal Article |
| Year |
2000 |
Publication |
Ecosystem Management and Restoration Research Program Technical Notes |
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Erdc Tn-Emrrp-Sr-14 |
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7 |
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AMD treatment sampling |
| Abstract |
Contaminated water flowing from abandoned coal mines is one of the most significant contributors to water pollution in former and current coal-producing areas. Acid mine drainage (AMD) can have severe impacts to aquatic resources, can stunt terrestrial plant growth and harm wetlands, contaminate groundwater, raise water treatment costs, and damage concrete and metal structures. In the Appalachian Mountains of the eastern United States alone, more than 7,500 miles of streams are impacted. The Pennsylvania Fish and Boat Commission estimates that the economic losses on fisheries and recreational uses are approximately $67 million annually (ref). While most modern coal-mining operations (Figure 1) must meet strict environmental regulations concerning mining techniques and treatment practices, there are thousands of abandoned mine sites in the United States (Figure 2). Treatment of a single site can result in the restoration of several miles of impacted streams. The purpose of this document is to briefly summarize key issues related to AMD treatment. This document is intended as a brief overview; thus, it is neither inclusive nor exhaustive. The technical note presents the preliminary planning issues |
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Acid Mine Drainage Treatment; 2; als Datei vorhanden 5 Abb.; VORHANDEN | AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17344 |
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374 |
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Jage, C.R.; Zipper, C.E. |
| Title |
Acid-mine drainage treatment using successive alkalinity-producing systems |
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RPT |
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2000 |
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acid mine drainage; alkalinity; Appalachians; carbonate rocks; decontamination; dissolved materials; dissolved oxygen; limestone; North America; oxygen; pH; pollution; reclamation; sedimentary rocks; United States; Virginia; waste management; water treatment 22, Environmental geology |
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Virginia Polytechnic Institute and State University, P.R.P.B.V.A.U.S. |
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Powell River Project research and education program reports |
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Acid-mine drainage treatment using successive alkalinity-producing systems; 2002-029549; GeoRef; English; References: 12; illus. incl. 2 tables U. S. Geological Survey, Library, Reston, VA, United States |
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CBU @ c.wolke @ 5882 |
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343 |
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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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Journal Article |
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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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Sibrell, P.L. |
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ARD remediation with limestone in a CO2 pressurized reactor |
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Journal Article |
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2000 |
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ICARD 2000, Vols I and II, Proceedings |
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1017-1026 |
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mine water treatment |
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We evaluated a new process for remediation of acid rock drainage (ARD). The process treats ARD with intermittently fluidized beds of granular limestone maintained within a continuous now reactor pressurized with CO2. Tests were performed over a thirty day period at the Toby Creek mine drainage treatment plant, Elk County, Pennsylvania in cooperation with the Pennsylvania Department of Environmental Protection. Equipment performance was established at operating pressures of 0, 34, 82, and 117 kPa using an ARD flow of 227 L/min. The ARD had the following characteristics: pH, 3.1; temperature, 10 OC; dissolved oxygen, 6.4 mg/L; acidity, 260 mg/L; total iron, 21 mg/L; aluminum, 22 mg/L; manganese, 7.5 mg/L; and conductivity, 1400 muS/cm. In all cases tested, processed ARD was net alkaline with mean pH and alkalinities of 6.7 and 59 mg/L at a CO2 pressure of 0 kPa, 6.6 and 158 mg/L at 34 kPa, 7.4 and 240 mg/L at 82 kPa, and 7.4 and 290 mg/L at 117 kPa. Processed ARD alkalinities were correlated to the settled bed depth (p <0.001) and CO2 pressure (p <0.001). Iron, aluminum, and manganese removal efficiencies of 96%, 99%, and 5%, respectively, were achieved with filtration following treatment. No indications of metal hydroxide precipitation or armoring of the limestone were observed. The surplus alkalinity established at 82 kPa was successful in treating an equivalent of 1136 L/min (five-fold dilution) of the combined three ARD streams entering the Toby Creek Plant. This side-stream capability provides savings in treatment unit scale as well as flexibility in treatment effect. The capability of the system to handle higher influent acidity was tested by elevating the acidity to 5000 mg/L with sulfuric acid. Net alkaline effluent was produced, indicating applicability of the process to highly acidic ARD. |
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ARD remediation with limestone in a CO2 pressurized reactor; Isip:000169875500098; Times Cited: 0; ISI Web of Science |
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no |
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CBU @ c.wolke @ 17100 |
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169 |
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Bernoth, L.; Firth, I.; McAllister, P.; Rhodes, S. |
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Biotechnologies for Remediation and Pollution Control in the Mining Industry |
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Journal Article |
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2000 |
Publication |
Miner. Metall. Process. |
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17 |
Issue |
2 |
Pages |
105-111 |
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bioremediation pollution control soil contamination solvents oils diesel hydrocarbons cyanide acid rock drainage microbial mats manganese bioremediation oxidation drainage removal water algae |
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As biotechnologies emerge from laboratories into main-stream application, the benefits they, offer are judged against competing technologies and business criteria. Bioremediation technologies have passed this test and are now widely used for the remediation of contaminated soils and ground waters. Bioremediation includes several distinct techniques that are used for the treatment of excavated soil and includes other techniques that are used for in situ applications. They play an important and growingrole in the mining industry for cost-effective waste management and site remediation. Most applications have been for petroleum contaminants, but advances continue to be made in the treatment of more difficult organ ic and inorganic species. This paper discusses the role of biotechnologies in remediation and pollution control from a mining-industry perspective. Several case studies are presented, including the land application of oily wastewater from maintenance workshops, the composting of hydrocarbon-contaminated soils and sludges, the bioventing of hydrocarbon solvents, the intrinsic bioremediation of diesel hydrocarbons, the biotreatment of cyanide in water front a gold mine, and the removal of manganese from acidic mine drainage. |
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0747-9182 |
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Biotechnologies for Remediation and Pollution Control in the Mining Industry; Isi:000087094600005; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17307 |
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450 |
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