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EXPERIMENTAL STUDIES ON ELECTROCHEMICAL AND BIOSORPTION TREATMENT ON EFFLUENT CONTAINING NITROBENZENE AND OPTIMIZATION USING RSM

Different processes were studied to abate the COD levels in nitrobenzene. The process electrochemical oxidation following Biosorption turned to be a novel one. Electrochemical oxidation was carried out in an electrolytic cell, with nitrobenzene in water as electrolyte and lead, copper as anode and cathode respectively. Response surface methodology (RSM) was used to optimize the conditions, in which a maximum (76.4%) of COD abated. Biosorption treatment in the presence of biosorbents such as maize and rice stems was followed. Finally 97.7% COD in nitrobenzene was abated after the biosorption treatment.