The Distillery effluent namely spent wash is treated in two Bio-Digesters having capacity of 45,000 M3 per day of Bio-Gas generation. The said gas is further purified with H2S separation plant and pure Methane is used for gas base power generation engine of 1.5 MW power generation. The exhaust of gas engine is used as fuel for heat recovery boiler and generated steam is used for Distillery process. At the same time balance purified Bio-gas is used as fuel for 6 MT capacities Boiler for steam generation which is used for Distillery Production. Hence the 100% recycle of Hazards waste of Distillery effluent i.e. spent wash is treated and “Zero” discharge pollution concept is 100% achieved with value addition and a strong profit centre from Hazardous waste.