Production of bioflocculant from marine bacteria and its application in the treatment of coal wash plant fines

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dc.contributor.advisorSimonis, J.J.
dc.contributor.advisorBasson, A.K.
dc.contributor.authorDafel, Jade
dc.date.accessioned2017-01-17T11:18:40Z
dc.date.available2017-01-17T11:18:40Z
dc.date.issued2015
dc.descriptionA thesis Submitted to the Faculty of Science in fulfilment of the requirements for the Degree of Masters of Science in the Department of Hydrology at the University of Zululand, 2015en_US
dc.description.abstractA total of 33 water and sediment samples were randomly selected from the marine environment on the North Coast of KwaZulu-Natal (KZN), South Africa. Strains were isolated and screened for their potential to secrete bioflocculants and tested for flocculating activity with a kaolin suspension. The strains that produced bioflocculants with a high yield of flocculating activity (above 60%) were selected for optimisation and further flocculating tests using coal mine slurry. One strain with good flocculating abilities for both a kaolin suspension and coal mine slurry (74% and 76% respectively) was analysed using its 16S rDNA nucleotide sequence and was identified as Bacillus cereus. The bioflocculant bacterium was optimal when glucose (40g/l) and urea, as the carbon and nitrogen sources, a pH of 4 and Ca2+ as the cation were utilized. The exceptional flocculating performance of Bacillus cereus demonstrated good potential for replacing the chemical flocculants that are currently used in flocculating coal mine slurry generated at Tendele Coal Mine (TCM) located in KZN.en_US
dc.identifier.urihttps://hdl.handle.net/10530/1500
dc.publisherUniversity of Zululanden_US
dc.subjectbioflocculant --marine bacteria --plantsen_US
dc.titleProduction of bioflocculant from marine bacteria and its application in the treatment of coal wash plant finesen_US
dc.typeThesisen_US
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