Methodology for management of endosulfan contaminated eluent

Management of Endosulfan contaminated eluent (24 mg/l) resulting from a tre atment process to remove Endosulfan from water with wood charcoal, was atte mpted using various methods viz. volatilisation, hydrolysis and sorption by viable cell bacteria with and without acclimatisation. Volatilisation fail ed in giving better result, as Endosulfan was not considerably volatile. It could achieve a removal efficiency of 1.4-2%. Hydrolysis resulted in 28.4% and 17.9% removal of Endosulfan in acidic and alkaline media, respectively . Viable cell bacteria (aerobic) without prior acclimatization showed effic iency of 89.7% and after prior acclimatisation showed 96% removal efficienc y Sorption by the acclimatized biomass was found a suitable method for the removal of Endosulfan at a concentration of 24 mg/l.