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Microbial decolorization and bioremediation of anaerobically digested molasses spent wash effluent by aerobic bacterial cultures

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Kumar, V, Wati, L, Singh - Nee Nigam, Poonam, Banat, IM, McMullan, G, Singh, D and Marchant, R (1997) Microbial decolorization and bioremediation of anaerobically digested molasses spent wash effluent by aerobic bacterial cultures. MICROBIOS, 89 (359). pp. 81-90. [Journal article]

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Abstract

Anaerobically digested molasses spent wash (DMSW) is a dark-brown-coloured recalcitrant effluent which has a high chemical oxygen demand (COD) and high pollution potential. Bacterial enrichment cultures were set up to obtain isolates capable of DMSW decolorization and bioremediation. Two aerobic bacterial cultures LA1 and D-2 were obtained using soil samples from an Indian distillery plant. Both grew well on 12.5% diluted digested spent wash supplemented with glucose as a readily available carbon source. The optimum conditions for growth and DMSW decolorization were 35 degrees C, pH 7.0, 3% glucose (w/v) and 0.5% peptone or yeast extract (w/v) in a basal mineral salt medium. The maximum decolorization (36.5% and 32.5%) and COD reduction (41.0% and 39.0%) were achieved for cultures LA1 and D-2, respectively, after 8 days incubation under the stated conditions. The advantages of using such a culture in digested spent wash bioremediation are discussed.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Infection and Immunity/Microbiology
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
Biomedical Sciences Research Institute > Pharmaceutical Science and Practice
ID Code:5539
Deposited By:Dr Poonam Singh - Nee Nigam
Deposited On:21 Dec 2009 11:20
Last Modified:16 May 2012 16:46

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