After the polyaluminium chloride composited by PAM, the removal ratios of turbidity, COD and BOD5 can attain 94.41%, 51.63% and 26.00% respectively for treating oily wastewater.

• 聚合氯化铝与PAM复配处理含油废水后，浊度去除率达94.；41%25，COD的去除率达到51