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Author |
Baskin, L. |
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Title  |
Linear relationship between mine flow-acid load and influence of depositional environment |
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Book Chapter |
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Year |
1979 |
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Underground coal mining symposium |
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acid mine drainage; Bell Gap Run; Blair County Pennsylvania; Cambria County Pennsylvania; environmental geology; ground water; hydrology; inorganic acids; iron; land use; Little Schuykill River; Loyalsock Creek; metals; Pennsylvania; pollution; programs; pyrite; Randolph County West Virginia; reclamation; rivers and streams; Roaring Creek; Schuylkill County Pennsylvania; statistical analysis; sulfides; sulfuric acid; Sullivan County Pennsylvania; surveys; Swatara Creek; treatment; United States; waste disposal; watersheds; West Virginia 22, Environmental geology |
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McGraw-Hill |
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New York City |
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Linear relationship between mine flow-acid load and influence of depositional environment; GeoRef; English; 1981-015370; Coal conference and expo V ; Underground coal mining symposium, Louisville, KY, United States, Oct. 23-25, 1979 References: 36; illus. incl. tables, sketch maps |
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Call Number |
CBU @ c.wolke @ 6819 |
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465 |
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Author |
Lovell, H.L. |
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Title |
Limestone Treatment Of Coal Mine Drainage |
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Journal Article |
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1971 |
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Min. Congr. J. |
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57 |
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10 |
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28-& |
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mine water treatment |
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0026-5160 |
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Limestone Treatment Of Coal Mine Drainage; Wos:A1971k631900002; Times Cited: 1; J Allen Overton Jr, 1920 N St Nw, Washington, DC 20036; ISI Web of Science |
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CBU @ c.wolke @ 9263 |
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101 |
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Author |
Deul, M. |
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Title |
Limestone for controlling acid mine drainage and for the treatment of acid mine water |
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Journal Article |
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1976 |
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Int. J. Rock Mech. Min. Sci. and Geomech. Abstr. |
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13 |
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8 |
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A92-111 |
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1365-1609 |
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Aug; Limestone for controlling acid mine drainage and for the treatment of acid mine water; Proc. 10th Forum Geol. Ind. Miner. Ohio Dept. Nat. Res. Div. Geol. Surv. Report 1, 1974, P43-46; Science Direct |
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CBU @ c.wolke @ 15103 |
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51 |
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Sibrell, P.L. |
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Limestone fluidized bed treatment of acid-impacted water at the Craig Brook National Fish Hatchery, Maine, USA |
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2006 |
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Aquacultural Engineering |
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34 |
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2 |
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61-71 |
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mine water treatment |
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Decades of atmospheric acid deposition have resulted in widespread lake and river acidification in the northeastern U.S. Biological effects of acidification include increased mortality of sensitive aquatic species Such as the endangered Atlantic salmon (Salmo salar). The purpose of this paper is to describe the development of a limestone-based fluidized bed system for the treatment of acid-impacted waters. The treatment system was tested at the Craig Brook National Fish Hatchery in East Orland, Maine over a period of 3 years. The product water from the treatment system was diluted with hatchery water to prepare water supplies with three different levels of alkalinity for testing of fish health and Survival. Based on positive results from a prototype system used in the first year of the study, a larger demonstration system was used in the second and third years with the objective of decreasing operating costs. Carbon dioxide was used to accelerate limestone dissolution, and was the major factor in system performance, as evidenced by the model result: Alk = 72.84 X P(CO2)(1/2); R-2 = 0.975. No significant acidic incursions were noted for the control water over the course of the Study. Had these incursions occurred, survivability in the untreated water would likely have been much more severely impacted. Treated water consistently provided elevated alkalinity and pH above that of the hatchery source water. (C) 2005 Elsevier B.V. All rights reserved. |
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Limestone fluidized bed treatment of acid-impacted water at the Craig Brook National Fish Hatchery, Maine, USA; Wos:000235568800001; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 16942 |
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113 |
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Author |
Cravotta, C.A., III; Trahan, M.K. |
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Title |
Limestone drains to increase pH and remove dissolved metals from acidic mine drainage |
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Journal Article |
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Year |
1999 |
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Appl. Geochem. |
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14 |
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5 |
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581-606 |
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manganese oxide redox processes sulfate waters iron-oxides adsorption ions oxidation surfaces environments aluminum |
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Despite encrustation by Fe and Al hydroxides, limestone can be effective for remediation of acidic mine drainage (AMD). Samples of water and limestone (CaCO3) were collected periodically for 1 a at 3 identical limestone-filled drains in Pennsylvania to evaluate the attenuation of dissolved metals and the effects of pH and Fe- and Al-hydrolysis products on the rate of CaCO3 dissolution. The influent was acidic and relatively dilute (pH < 4; acidity < 90 mg) but contained 1-4 mg . L-1 of O-2, Fe3+, Al3+ and Mn2+. The total retention time in the oxic limestone drains (OLDs) ranged from 1.0 to 3.1 hr. Effluent remained oxic (O-2 > 1 mg . L-1) but was near neutral (pH = 6.2-7.0); Fe and Al decreased to less than 5% of influent concentrations. As pH increased near the inflow, hydrous Fe and Al oxides precipitated in the OLDs, The hydrous oxides, nominally Fe(OH)(3) and Al(OH)(3), were visible as loosely bound, orange-yellow coatings on limestone near the inflow. As time elapsed, Fe(OH)(3) and Al(OH)(3) particles were transported downflow. The accumulation of hydrous oxides and elevated pH (> 5) in the downflow part of the OLDs promoted sorption and coprecipitation of dissolved Mn, Cu, Co, Ni and Zn as indicated by decreased concentrations of the metals in effluent and their enrichment relative to Fe in hydrous-oxide particles and coatings on limestone. Despite thick (similar to 1 mm) hydrous-oxide coatings on limestone near the inflow, CaCO3 dissolution was more rapid near the inflow than at downflow points within and the OLD where the limestone was not coated. The high rates of CaCO3 dissolution and Fe(OH3) precipitation were associated with the relatively low pH and high Fe3+ concentration near the inflow. The rate of CaCO3 dissolution decreased with increased pH and concentrations of Ca2+ and HCO3- and decreased Pco(2). Because overall efficiency is increased by combining neutralization and hydrolysis reactions, an OLD followed by a settling pond requires less land area than needed for a two-stagetreatment system consisting of an anoxic limestone drain and oxidation-settling pond or wetland. To facilitate removal of hydrous-oxide sludge, a perforated-pipe subdrain can be installed within an OLD. (C) 1999 Elsevier Science Ltd. |
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0883-2927 |
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Jul; Limestone drains to increase pH and remove dissolved metals from acidic mine drainage; Isi:000080043300004; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10102.pdf; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17470 |
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22 |
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