Vol. 2, Issue 9, Part H (2016)

Abstract
Chromium is an essential trace metal for living organisms occurs in two major oxidation states Chromium III and chromium IV. Chromium III is more toxic when it penetrates the living tissues. So the recovery of Chromium III from leather effluent by Bioelectrochemical method is more effectively than conventional methods. In our findings various parameters of the effluent was analysed and the reduction of Chromium III in the sample was determined by various techniques such as UV vis spectroscopy, FTIR analysis, EDAX analysis was done. In our study among various microbes Pseudomonas aeruginosa coated bioelectrode was more efficient in chromium reduction. It reported that this organism was recommended as safe for biological treatment of leather effluent. Efforts were in progress to extend the work to other industrial effluents and determine the trace metals which were toxic to the environment.