The development of petroleum,catering,coal chemical industry has produced a large number of oil-containing wastewater,causing serious pollution to water body and soil.After the oily wastewater is discharged into water body and soil,it forms oil film on water surface and soil gap,which is not conducive to the growth of aquatic organisms and crops.Therefore,the treatment of oily wastewater cannot be ignored.Scholars at home and abroad have carried out research on the treatment of oil substances in physical,chemical and biological aspects,and put forward methods such as air flotation,membrane separation,electrolysis and anaerobic biological treatment,so as to continuously improve the treatment process of oil-bearing wastewater.
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维普
