Performance comparison of experimental constructed wetlands with different filter media and macrophytes treating industrial wastewater contaminated with lead and copper
Scholz, M and Wu, J 2002, 'Performance comparison of experimental constructed wetlands with different filter media and macrophytes treating industrial wastewater contaminated with lead and copper' , Bioresource Technology, 83 (2) , pp. 71-79.
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The aim of this study was to investigate the treatment efficiency of passive vertical-flow wetland filters containing different macrophytes (Phragmites and/or Typha) and granular media with different adsorption capacities. Gravel, sand, granular activated carbon, charcoal and Filtralite (light expanded clay) were used as filter media. Different concentrations of lead and copper sulfate were added to polluted urban stream inflow water to simulate pretreated mine wastewater. The relationships between growth media, microbial and plant communities as well as the reduction of predominantly lead, copper and five-day biochemical oxygen demand (BOD5) were investigated. An analysis of variance showed that concentration reductions (mg l−1) of lead, copper and BOD5 were significantly similar for the six experimental wetlands. Microbial diversity was low due to metal pollution and similar for all filters. There appears to be no additional benefit in using adsorption media and macrophytes to enhance biomass performance during the first 10 months of operation.
|Uncontrolled Keywords:||Constructed wetlands, lead, copper, common reed (phragmites australis), cattail (typha latifolia), granular activated carbon, sand, protozoa, algae, invertebrates|
|Themes:||Built and Human Environment|
|Schools:||Colleges and Schools > College of Science & Technology|
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Civil Engineering Research Centre
|Journal or Publication Title:||Bioresource Technology|
|Depositing User:||Users 47901 not found.|
|Date Deposited:||15 Jul 2011 11:50|
|Last Modified:||24 Aug 2011 12:25|
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