Kinetics of Bacterial Mortality in Granular Bed Wetlands
| dc.creator | Mayo, Aloyce W. | |
| dc.date | 2016-05-24T11:09:38Z | |
| dc.date | 2016-05-24T11:09:38Z | |
| dc.date | 2004 | |
| dc.date.accessioned | 2018-03-27T08:40:48Z | |
| dc.date.available | 2018-03-27T08:40:48Z | |
| dc.description | Faecal 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. | |
| dc.identifier | Mayo, 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. Vancouver | |
| dc.identifier | http://hdl.handle.net/20.500.11810/2227 | |
| dc.identifier | 10.1016/j.pce.2004.09.030 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.11810/2227 | |
| dc.language | en | |
| dc.title | Kinetics of Bacterial Mortality in Granular Bed Wetlands | |
| dc.type | Journal Article, Peer Reviewed |