Microbial chromium reduction using free and immobilized bacillus sp

Abstract

The contamination of aqueous environment and soil by heavy newlinemetals is increasing due to rapid modernization of industries high populationgrowth urbanization and human activities Anthropogenic activities such aselectroplating leather tanning alloys manufacture pigments productionfertilizer manufacture dying wood preservation and nuclear plants dischargelarge amount of heavy metals This results in the accumulation of heavy newlinemetals in the environment These metals enter into the food chain and createsevere ecological and health problems to the living system It is important tonote that these heavy metals create severe problems even at low newlineconcentrations newline newline