Environmental Treatment of Dyes: Methyl Orange Decolorization Using Hog Plum Peel and Mix-Bacterial Strains

Abstract

The discharge of azo dye in to environment is of great alarmed due to color, toxicity, mutagenicity and carcinogenicity of the dye. Considerable attention has been given in evaluating the capability of bioadsorbent & a mix bacterial strain in decolorization and degradation of azo dye. Hog plum peel decolorizes methyl orange dye about 92% at P H 6.0, initial dye concentration 20 mg/L, adsorbent dose 0.5 g/100ml & 60 min contact time. Bacterial strains (E.coli & Enterobacter) showed a strong ability to decolorize methyl orange, azo dye. Aerobic conditions with pH 8.0, initial dye concentration 500 ppm and 37⁰C were considered to be the optimum decolorizing conditions under static state and decolorize about 96% of dye. High decolorization level and simplistic conditions show the potential for this bioadsorbent &bacterial strain to be used in the physical & biological treatment of dyeing mill effluents.