Partial characterization of metal resistant bacillus Spp. isolated from electroplating effluent sediments
AbstractBiosorption is an effective technology using bacteria to remove heavy metals from various industrial effluents. The present study includes physicochemical characterization of industrial effluent, isolation and identification of metal resistant bacteria and ability of bacteria to absorb the metal ions. Electroplating industrial effluent was collected from Meena electroplating industry, Madurai, Tamil Nadu, India and analyzed various physicochemical characteristics through the determination of pH, temperature, TSS, TDS, BOD, COD, Dissolved Oxygen, Chloride and Hardness. Followed by metal resistant bacteria was isolated from electroplating effluents contaminated soil sediments and identified using standard methods. Further, the study characterized the growth of Bacillus sp in zinc containing electroplating industrial effluents with various environmental conditions such as various pH (pH 5, pH 7 and pH 9), different temperatures (20°C, 30°C and 40°C) and various concentration of effluent (15%, 20% and 25%). It was found that Bacillus sp shown the better growth in zinc containing electroplating industrial effluents in pH 7 at 30°C. Keywords: Heavy metals, Biosorption, Zinc, Bacillus sp, Electroplating effluents.
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