Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 11, Issue 1, 2009; Page No.(201-204 )

INVESTIGATION OF PHYSICO-CHEMICAL CHARACTERISTICS AND SCREENING FOR MUTAGENESIS IN CHROMIUM ELECTROPLATING INDUSTRY EFFLUENT

P. MANFLP, V. BHUVANESWARF AND S. J. P. JEYANTHI

Abstract

Physicochemical characteristics of Chromium electroplating industry effluent were analysed. The effluent colour, turbidity,pH,electrical conductivity, total suspended solids and total dissolved solids were beyond the permissible limits. The High levels of BOD and COD indicates a high organic load in the effluent. The total hardness, chloride, sulphate, calcium, magnesium, sodium, potassium and chromium levels exceeded the tolerance limit prescribed by Bureau of Indian standards. The mutagenicity of the effluent was confirmed by Ames Salmonella assay using mutant bacterial strains of Salmonella typhimurium TA 98 and TA 100. The present investigation indicated that the effluent is highly hazardous to the environment.

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