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Enhanced degradation of 14 C-HCB in two tropical clay soils using multiple anaerobic–aerobic cycles

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dc.contributor.author Kengara, Fredrick O
dc.contributor.author Doerfler, Ulrike
dc.contributor.author Welzl, Gerhard
dc.contributor.author Ruth, Bernhard
dc.contributor.author Munch, Jean C
dc.contributor.author Schroll, Reiner
dc.date.accessioned 2018-01-19T12:49:31Z
dc.date.available 2018-01-19T12:49:31Z
dc.date.issued 2013-02-28
dc.identifier.uri https://repository.maseno.ac.ke/handle/123456789/152
dc.description.abstract The aim of the study was to induce and enhance the degradation of hexachlorobenzene (HCB), a highly-chlorinated persistent organic pollutant, in two ecologically different tropical soils: a paddy soil (PS) and a non-paddy soil (FS). The degradation of HCB was enhanced using two anaerobic–aerobic cycles in model laboratory experiments. There was greater degradation of HCB in the PS (half-life of 224 days) relative to the FS (half-life of 286 days). It was further shown that soils amended with compost had higher metabolite concentrations relative to the non-amended soils. In the first cycle, there was little degradation of HCB in both soils. However, in the second cycle, there was enhanced mineralization in the PS under aerobic conditions, with the compost-treated samples showing higher mineralization. There was also extensive volatilization in both soils. The metabolite pattern revealed that … en_US
dc.title Enhanced degradation of 14 C-HCB in two tropical clay soils using multiple anaerobic–aerobic cycles en_US
dc.type Article en_US


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