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Carbon removal mechanisms in subsurface flow wetlands
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Dr Joana Baptista
Professor Thomas Donnelly
Dr Russell Davenport
Baptista JDC, Donnelly T, Rayne D, Davenport RJ
Water Intelligence Online
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The microbial mechanisms of carbon removal in subsurface flow wetlands were studied, in one wetland with plants and one without plants. Particular emphasis was given to the influence of plants in the treatment process. Wetlands without plants performed greater carbon removal than those with plants, 63% and 51%, respectively (p<0.05). Molecular analysis of the bacterial diversity, growth rates and specific microbial activities showed that wetland with plants was different from the wetland without plants. Although SRB were found in both wetlands, methanogens were only found in the wetland without plants, where they accounted for 75% of the total carbon removed.
Papers presented at the 3rd IWA UK Young Researchers conference, Nottingham University, UK, March 2002 ID: 200207038
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