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Author |
Rukin, N. |
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Title |
Whittle mine water treatment system: In-river attenuation of manganese |
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Journal Article |
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2003 |
Publication |
Land Contam. Reclam. |
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11 |
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2 |
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137-144 |
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Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) river water natural attenuation manganese water treatment mine drainage coal mine |
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Abstract |
Much work has been undertaken on the design of treatment systems to remove iron from ochreous mine water discharges. Unlike iron, manganese removal is far more difficult and generally requires active chemical dosing rather than passive treatment. The need for manganese removal can therefore significantly change the economics, management attention and sustainability of a site. Understanding natural attenuation of manganese in river systems is therefore key to deciding whether (active) manganese treatment is needed to protect downstream receptors. Nuttall (2002, this volume) describes the effectiveness of the passive treatment system at Whittle in reducing both iron and manganese concentrations in ochreous mine waters. This paper discusses the results of in-river monitoring and provides evidence for manganese removal downstream of the discharge point. In addition to dilution, attenuation appears to be in the order of 20 to 50%, depending on relative rates of mine water discharge and river flows. Such attenuation means that active treatment may not be needed for the long-term operation of the Whittle scheme. Operation of the scheme commenced in July 2002, with monitoring to further examine evidence for manganese attenuation and any impact on the ecology of the recipient watercourses. |
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N. Rukin, Entec UK Ltd., 160-162 Abbey Foregate, Shrewsbury SY2 6BZ, United Kingdom |
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0967-0513 |
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Whittle mine water treatment system: In-river attenuation of manganese; 2530418; United-Kingdom 2; Geobase |
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CBU @ c.wolke @ 17521 |
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257 |
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Author |
McLeod, K.W.; Ciravolo, T.G. |
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Title |
Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions |
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Journal Article |
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Year |
2003 |
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Environmental Toxicology and Chemistry |
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22 |
Issue |
12 |
Pages |
2948-2951 |
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Heavy metals ecological abstracts: pollution (73 7 3) seedling saturated medium biomass manganese sensitivity analysis bioaccumulation Nyssa aquatica Taxodium distichum |
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In anaerobic soils of wetlands, Mn is highly available to plants because of the decreasing redox potential and pH of flooded soil. When growing adjacent to each another in wetland forests, water tupelo (Nyssa aquatica L.) had 10 times greater leaf manganese concentration than bald cypress (Taxodium distichum [L.] Richard). This interspecific difference was examined over a range of manganese-enriched soil conditions in a greenhouse experiment. Water tupelo and bald cypress seedlings were grown in fertilized potting soil enriched with 0, 40, 80, 160, 240, 320, and 400 mg Mn/L of soil and kept at saturated to slightly flooded conditions. Leaf Mn concentration was greater in water tupelo than bald cypress for all but the highest Mn addition treatment. Growth of water tupelo seedlings was adversely affected in treatments greater than 160 mg Mn/L. Total biomass of water tupelo in the highest Mn treatment was less than 50% of the control. At low levels of added Mn, bald cypress was able to restrict uptake of Mn at the roots with resulting low leaf Mn concentrations. Once that root restriction was exceeded, Mn concentration in bald cypress leaves increased greatly with treatment; that is, the highest treatment was 40 times greater than control (4,603 vs 100 < mu >g/g, respectively), but biomass of bald cypress was unaffected by manganese additions. Bald cypress, a tree that does not naturally accumulate manganese, does so under manganese-enriched conditions and without biomass reduction in contrast to water tupelo, which is severely affected by higher soil Mn concentrations. Thus, bald cypress would be less affected by increased manganese availability in swamps receiving acidic inputs such as acid mine drainage, acid rain, or oxidization of pyritic soils. |
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K.W. McLeod, Savannah River Ecology Laboratory, University of Georgia, P.O. Drawer E, Aiken, SC 29802, United States mcleod@srel.edu |
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0730-7268 |
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Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions; 2574798; United-States 15; Geobase |
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CBU @ c.wolke @ 16010 |
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302 |
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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Design aspects of passive in situ remediation schemes for minign & industrial effluents |
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Journal Article |
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2003 |
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Tübinger Geowissenschaftliche Arbeiten |
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C68 |
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95-113 |
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Keywords |
mine water passive treatment |
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0935-4948 |
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Design aspects of passive in situ remediation schemes for minign & industrial effluents; 1; FG 1 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9759 |
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319 |
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Author |
Costello, C. |
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Book Whole |
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2003 |
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47 pp |
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AMD treatment |
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National Network for Environmental Management Studies Program |
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Washington |
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DC, U.S.E.P.A.O. of S.W. and E.R.T.I.O.W. |
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Acid Mine Drainage – Innovative Treatment Technologies |
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Acid Mine Drainage – Innovative Treatment Technologies; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 11 Abb. |
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CBU @ c.wolke @ 9573 |
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414 |
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Author |
Consortium, P. |
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Book Whole |
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2003 |
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166 pp |
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Keywords |
PIRAMID passive treatment |
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University of Newcastle Upon Tyne |
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Newcastle Upon Tyne |
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Engineering Guidelines for the Passive Remediation of Acidic and/or Metalliferous Mine Drainage and similar Wastewaters |
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0-9543827-1-4 |
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Engineering Guidelines for the Passive Remediation of Acidic and/or Metalliferous Mine Drainage and similar Wastewaters; 1; VORHANDEN | AMD ISI | Wolkersdorfer; FG als Datei vorhanden 10 Abb., 27 Tab. |
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CBU @ c.wolke @ 9846 |
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415 |
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