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Bosman, D.J. |
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Title  |
Lime Treatment Of Acid-Mine Water And Associated Solids Liquid Separation |
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Journal Article |
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1983 |
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Water Sci. Technol. |
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15 |
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2 |
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71-84 |
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mine water treatment |
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Lime Treatment Of Acid-Mine Water And Associated Solids Liquid Separation; Wos:A1983qg97300005; Times Cited: 7; ISI Web of Science |
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CBU @ c.wolke @ 14794 |
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95 |
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Sibrell, P.L. |
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Title |
Limestone fluidized bed treatment of acid-impacted water at the Craig Brook National Fish Hatchery, Maine, USA |
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Journal Article |
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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 |
Lovell, H.L. |
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Title |
Limestone Treatment Of Coal Mine Drainage |
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Journal Article |
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Year |
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 |
Bamforth, S.M. |
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Title |
Manganese removal from mine waters – investigating the occurrence and importance of manganese carbonates |
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Journal Article |
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Year |
2006 |
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Appl. Geochem. |
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21 |
Issue |
8 |
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1274-1287 |
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mine water treatment |
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Manganese is a common contaminant of mine water and other waste waters. Due to its high solubility over a wide pH range, it is notoriously difficult to remove from contaminated waters. Previous systems that effectively remove Mn from mine waters have involved oxidising the soluble Mn(II) species at an elevated pH using substrates such as limestone and dolomites. However it is currently unclear what effect the substrate type has upon abiotic Mn removal compared to biotic removal by in situ micro-organisms (biofilms). In order to investigate the relationship between substrate type, Mn precipitation and the biofilm community, net-alkaline Mn-contaminated mine water was treated in reactors containing one of the pure materials: dolomite, limestone, magnesite and quartzite. Mine water chemistry and Mn removal rates were monitored over a 3-month period in continuous-flow reactors. For all substrates except quartzite, Mn was removed from the mine water during this period, and Mn minerals precipitated in all cases. In addition, the plastic from which the reactor was made played a role in Mn removal. Manganese oxyhydroxides were formed in all the reactors; however, Mn carbonates (specifically kutnahorite) were only identified in the reactors containing quartzite and on the reactor plastic. Magnesium-rich calcites were identified in the dolomite and magnesite reactors, suggesting that the Mg from the substrate minerals may have inhibited Mn carbonate formation. Biofilm community development and composition on all the substrates was also monitored over the 3-month period using denaturing gradient gel electrophoresis (DGGE). The DGGE profiles in all reactors showed no change with time and no difference between substrate types, suggesting that any microbiological effects are independent of mineral substrate. The identification of Mn carbonates in these systems has important implications for the design of Mn treatment systems in that the provision of a carbonate-rich substrate may not be necessary for successful Mn precipitation. (c) 2006 Elsevier Ltd. All rights reserved. |
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Manganese removal from mine waters – investigating the occurrence and importance of manganese carbonates; Wos:000240297600004; Times Cited: 0; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 16916 |
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107 |
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Author |
Scholz, M. |
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Title |
Mature experimental constructed wetlands treating urban water receiving high metal loads |
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Journal Article |
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Year |
2002 |
Publication |
Biotechnology Progress |
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18 |
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6 |
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1257-1264 |
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Keywords |
mine water treatment |
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The aim was to assess over 2 years the treatment efficiencies of vertical-flow wetland filters containing macrophytes and granular media of different. adsorption capacities. Different concentrations of lead and copper sulfate (constant for 1 year each) were added to urban beck inflow water in order to simulate pretreated (pH adjustment assumed) mine wastewater. After 1 year of operation, the inflow concentrations for lead and copper were increased from 1.30 to 2.98 and from 0.98 to 1.93 mg/L, respectively. However, the metal mass load rates (mg/m(2)/d) were increased by a factor of approximately 4.9 for lead and 4.3 for copper. No breakthrough of metals was recorded. Lead and copper accumulated in the biomass of the litter zone and rhizomes of the macrophytes. Furthermore, microbiological activity decreased during the second year of operation. Bioindicators such as ciliated protozoa and zooplankton decreased sharply in numbers but diatoms increased. In conclusion, the use of macrophytes and, adsorption media did not significantly enhance the filtration of lead and copper. Particulate lead is removed by filtration processes including straining. Furthermore, some expensive and time-consuming water quality variables can be predicted with less expensive ones such as temperature in order to reduce sampling costs. |
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Mature experimental constructed wetlands treating urban water receiving high metal loads; Wos:000179760000018; Times Cited: 11; ISI Web of Science |
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CBU @ c.wolke @ 17032 |
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119 |
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