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Author Rukin, N. openurl 
  Title Whittle mine water treatment system: In-river attenuation of manganese Type Journal Article
  Year 2003 Publication Land Contam. Reclam. Abbreviated Journal  
  Volume 11 Issue 2 Pages 137-144  
  Keywords 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  
  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.  
  Address N. Rukin, Entec UK Ltd., 160-162 Abbey Foregate, Shrewsbury SY2 6BZ, United Kingdom  
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  ISSN 0967-0513 ISBN Medium  
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  Notes Whittle mine water treatment system: In-river attenuation of manganese; 2530418; United-Kingdom 2; Geobase Approved no  
  Call Number CBU @ c.wolke @ 17521 Serial 257  
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Author Rabenhorst, M.C.; James, B.R. openurl 
  Title Acid mine drainage remediation via sulfidization in wetlands Fiscal year 1992 annual report Type RPT
  Year 1993 Publication Abbreviated Journal  
  Volume Issue Pages  
  Keywords acid mine drainage; anaerobic environment; Appalachians; concentration; decontamination; ferric iron; iron; manganese; marshes; Maryland; metals; mires; North America; oxidation; pollutants; pollution; pore water; remediation; sulfidization; transport; United States; water quality; water treatment; wetlands 22, Environmental geology  
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  Series Editor University of Maryland, W.R.R.C.C.P.M.D.U.S. Series Title Abbreviated Series Title  
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  Notes Acid mine drainage remediation via sulfidization in wetlands Fiscal year 1992 annual report; 1998-034327; GeoRef; English; illus. incl. 1 table University of Maryland, Water Resources Research Center, College Park, MD, United States Approved no  
  Call Number CBU @ c.wolke @ 6684 Serial 267  
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Author McLeod, K.W.; Ciravolo, T.G. openurl 
  Title Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions Type Journal Article
  Year 2003 Publication Environmental Toxicology and Chemistry Abbreviated Journal  
  Volume 22 Issue 12 Pages 2948-2951  
  Keywords Heavy metals ecological abstracts: pollution (73 7 3) seedling saturated medium biomass manganese sensitivity analysis bioaccumulation Nyssa aquatica Taxodium distichum  
  Abstract 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.  
  Address 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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  ISSN 0730-7268 ISBN Medium  
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  Notes Sensitivity of water tupelo (Nyssa aquatica) and bald cypress (Taxodium distichum) seedlings to manganese enrichment under water-saturated conditions; 2574798; United-States 15; Geobase Approved no  
  Call Number CBU @ c.wolke @ 16010 Serial 302  
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Author Hellier, W.W.; Giovannitti, E.F.; Slack, P.T. openurl 
  Title Best professional judgement analysis for constructed wetlands as a best available technology for the treatment of post-mining groundwater seeps Type Book Chapter
  Year 1994 Publication Special Publication – United States. Bureau of Mines, Report: BUMINES-SP-06A-94 Abbreviated Journal  
  Volume Issue Pages 60-69  
  Keywords acid mine drainage; coal mines; geochemistry; ground water; iron; manganese; metals; mines; mining; mining geology; open-pit mining; pH; pollution; reclamation; remediation; seepage; surface mining; tailings; waste disposal; wetlands 22, Environmental geology  
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  Series Editor Series Title Proceedings of the International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage; Volume 1 of 4; Mine drainage Abbreviated Series Title  
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  Notes Best professional judgement analysis for constructed wetlands as a best available technology for the treatment of post-mining groundwater seeps; GeoRef; English; 2007-045158; International land reclamation and mine drainage conference and Third international conference on The abatement of acidic drainage, Pittsburgh, PA, United States, April 24-29, 1994 References: 9; illus. incl. 2 tables Approved no  
  Call Number CBU @ c.wolke @ 6568 Serial 353  
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Author Brooks, R.P.; Unz, R.F.; Davis, L.K.; Tarutis, W.J.; Yanchunas, J. openurl 
  Title Long-term removal and retention of iron and manganese from acidic mine drainage by wetlands Type Journal Article
  Year 1990 Publication Abbreviated Journal  
  Volume Issue Pages 147  
  Keywords Acid mine drainage Wetlands Biological treatment Iron removal Manganese removal  
  Abstract A promising low-technology solution for treating acidic mine drainage (AMD) emanating from coal mined lands involves the use of constructed wetlands.^The research was directed at addressing questions about retention mechanisms for the long-term storage of iron and manganese in constructed wetlands dominated by broad-leaved cattails (Typha latifolia).^Three sites in central Pennsylvania spanning the range of water chemistry parameters found in AMD were investigated.^When the AMD was circumneutral, and metal loadings were low, 79% of the iron, and 48% of the manganese were retained on average.^In the highly acidic site (pH approx.^= 3), < 10% of the metal loadings were retained.^The primary retention mechanism appears to be the formation of metal oxides in the aerobic zones of the sediments.^Although most microbial isolates extracted from sediment cores originated in the aerobic portions of the sediments, there was no evidence that they were transforming metals.^When AMD is circumneutral and metal loadings are low, constructed wetlands can be an effective approach to treating mine drainage.^At sites with highly acidic waters and high metal loadings, the use of constructed wetlands to treat AMD may be ineffectual, and should be implemented with caution.  
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  Notes Long-term removal and retention of iron and manganese from acidic mine drainage by wetlands; Springfield, Va. : NTIS; Opac Approved no  
  Call Number CBU @ c.wolke @ 7082 Serial 435  
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