Kinetics of Bacterial Mortality in Granular Bed Wetlands

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dc.contributor.authorMayo, Aloyce W.
dc.date.accessioned2016-05-24T11:09:38Z
dc.date.available2016-05-24T11:09:38Z
dc.date.issued2004
dc.description.abstractFaecal coliform and faecal Streptococci die-off was investigated in the surface flow granular bed constructed wetland cell. The granular bed cell of effective plan area of 7.5 m × 1.5 m and 0.7 m deep was filled with aggregate size 19 mm up to a depth of 0.35 m. The remaining 0.35 m depth was filled with water. To assess the performance of the granular bed, samples were collected at the influent and effluent of the cell for calibration of a mathematical model. The analysis of the model suggests that bacterial mortality rate constant was largely influenced by sunlight intensity, which was responsible for 72.6% of removal. The influence of other parameters such as interception, filtration, dissolved oxygen, temperature, sedimentation on bacterial mortality rate were less significant. For instance, dissolved oxygen and pH contributed 7% and sedimentation only 0.44%. The ratio for the rate constant term to light attenuation coefficient (ks/K) was 1.281 × 10-3 m cm2/cal and the model efficiency was 0.80.en_US
dc.identifier.citationMayo, A.W., 2004. Kinetics of bacterial mortality in granular bed wetlands. Physics and Chemistry of the Earth, Parts A/B/C, 29(15), pp.1259-1264. Vancouveren_US
dc.identifier.doi10.1016/j.pce.2004.09.030
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2227
dc.language.isoenen_US
dc.titleKinetics of Bacterial Mortality in Granular Bed Wetlandsen_US
dc.typeJournal Article, Peer Revieweden_US
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