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BIOLOGICAL TREATMENT OF DISTILLERY WASTE FOR POLLUTION-REMEDIATION

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

Fitzgibbon, FJ, Singh - Nee Nigam, Poonam, Singh, D and Marchant, Roger (1995) BIOLOGICAL TREATMENT OF DISTILLERY WASTE FOR POLLUTION-REMEDIATION. JOURNAL OF BASIC MICROBIOLOGY, 35 (5). pp. 293-301. [Journal article]

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Abstract

The biological treatment of spent wash from molasses distilleries was investigated. Analysis of raw spent wash showed it to be a recalcitrant waste, with a high COD of 85,170 mg/l and containing inhibitory phenolic compounds. Reverse phase thin layer chromatography identified gallic and vanillic acid present in spent wash. The fungi Geotrichum candidum, Coriolus versicolor; Phanerochaete chyrsosporium and Mycelia sterilia were screened for their ability to decolourize spent wash and to reduce the COD level. A 10 day pretreatment with Geotrichum candidum at 30 degrees C resulted in reducing the COD by 53.17% and total phenols by 47.82%, enabling other bioremediating organisms to grow. Coriolus verisicolor immobilized in a packed-bed reactor reduced the COD of spent wash by a further 50.3% giving an overall reduction in COD of 77% to 15,780 mg/l. A small amount of decolourization was achieved (4.2%), although the spent wash was still coloured. Present studies are encouraging and indicate that it is possible to bioremediate spent wash using a multi-stage treatment process involving an intial pretreatment step with Geotrichum candidum.

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
ID Code:5560
Deposited By:Dr Poonam Singh - Nee Nigam
Deposited On:21 Dec 2009 11:34
Last Modified:27 Jun 2011 13:33

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