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Author (up) Groudev, S.N. url  openurl
  Title Treatment of acid mine drainage by a natural wetland Type Journal Article
  Year 2002 Publication Wetlands and Remediation Ii Abbreviated Journal  
  Volume Issue Pages 133-139  
  Keywords mine water treatment  
  Abstract Acid drainage waters generated in the copper ore deposit Elshitza. Central Bulgaria, were treated by a natural wetland located in the deposit. The waters had a pH in the range of about 2.5 – 3.5 and contained copper, cadmium, arsenic, iron, manganese and sulphates as main pollutants. The watercourse through the wetland covered a distance of about 100 in and the water flow rate varied in the range of about 0.5 – 2.0 1/s. The wetland was characterized by an abundant water and emergent vegetation and a diverse microflora. Phragmites communis was the prevalent plant species in the wetland but species of the genera Scirpus, Typha, Juncus, Carex and Poa as well as different algae were also well present. It was found that an efficient removal of the pollutants was achieved and their residual concentrations in the wetland effluents were decreased below the relevant permissible levels for water intended for use in the agriculture and/or industry. The removal was clue to different processes but the microbial dissimilatory sulphate reduction and the sorption of pollutants by the organic matter and clay minerals present in the wetland played the main role. Negative effects of the pollutants on the growth and activity of the indigenous plant and microbial communities were not observed.  
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  Notes Treatment of acid mine drainage by a natural wetland; Isip:000175585500017; Times Cited: 0; ISI Web of Science Approved no  
  Call Number CBU @ c.wolke @ 17039 Serial 159  
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