Isolation and molecular analysis of bacterial strains that are resistant to toxic metals in municipal and industrial wastes

Yap, Chin Ann (2008) Isolation and molecular analysis of bacterial strains that are resistant to toxic metals in municipal and industrial wastes. Masters thesis, Universiti Malaysia Sarawak (UNIMAS).

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Abstract

Forty-nine soil samples known to be contaminated with heavy metals were analyzed for their distribution, and the physico-chemical parameters that affect their concentrations in the respective areas. The sampling areas include the Matang, Kota Samarahan, Bau and Kota Padawan areas and the Kuap River. The Kuap River, Matang and Samarahan samples were highly contaminated with heavy metals including Co, Cu, Pb, Hg, As and Ag. Chemical analysis showed that the Bau soil was highly polluted with arsenic and mercury. The concentrations of heavy metals are influenced by different factors. Correlation studies showed that most of the heavy metals have significant relationships with soil pH and organic matter content, but, not with organic carbon and CEC content except for As and Hg. Soil chemical speciation showed that Hg, Cu, Ag and Pb were present in stable forms and were not available to plant and other organism for a reasonable period.

Item Type: Thesis (Masters)
Additional Information: Thesis (M.Sc.) -- Universiti Malaysia Sarawak, 2008.
Uncontrolled Keywords: Hazardous wastes, Analysis, Hazardous wastes, Environmental aspects, toxic metals, bacterial strains, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, Postgraduate, research, Universiti Malaysia Sarawak.
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Gani
Date Deposited: 12 Feb 2020 07:57
Last Modified: 12 Jun 2023 06:29
URI: http://ir.unimas.my/id/eprint/28958

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