Use of crushed olive kernels as carrier in malathion biodegradation

Abstract

Immobilization of microorganisms on inert supports is widely used for wastewater treatment since this strategy leads to a more efficient process. In this study, the biodegradation of malathion using acclimated activated sludge culture was achieved. The performance of a laboratory scale reactor (Packed Bed Reactor) treating malathion using crushed olive kernels as carrier for cell immobilization was investigated. The activated sludge was found to be able to use the malathion as the sole carbon source. The degradation capacity of the Packed Bed Reactor was higher than the performance obtained with the batch reactor. Reactor packed with crushed olive kernels permitted a complete degradation of malathion (10mg/ dm 3 ) within 12h.