摘要：In India there are 290 distilleries producing 2.75 billion liters ol alcohol generating 45 billion liters ol waste water annually. The distiller) disposing waste water, in to the natural streams, on to the land (or agricultural land), pollutes the mother earth. Also it is essential to sustain the mother earth lor the future oT our next generation. The technology for treatment ol such a waste water is ol prime concern. Hence, the present study was locussed on dccolouri/ation and deodourisation ol spent wash using oxidixing. coagulating agents and biological material AM the treatment has shown complete odour removal. No colour removal has been noticed with powdered strychnus potatorum treatment. The result ol chemical treatment rexealed the highest colour removal than biological agents. Complete colour removal has been noticed when the 5% diluted spent wash treated with 1.5 g and 2 g of calcium hypo ehlorite (bleaching powder).
关键词：Decolourisation; Deodourisation; Chemical and biological agents
