The
batch operation for 10 days was done first to establish biofilms and pre-treatment was applied in order to remove
fat and feathers. Experiments involved the measurement of wastewater characteristics i.e. BOD5, COD and SS for
five days continuous analysis. The both sand filtration had removed 66.8 % SS. Two layer sand filtration had
removed effectively 45.8% BOD5 and 43.8% COD whereas 32.1% BOD5 and 41.9 % COD for three layer sand
filtration. This study had revealed that sand filtration has a potential in treating chicken processing wastewater.