Abstract: Aiming at the advanced treatment of salt-containing wastewater in a petrochemical enterprise,the research of comparative tests on micro- electrolytic oxidation and ozone oxidation methods has been accomplished. The treatment effects of the two methods are compared. The results show that for micro-electrolytic oxidation method,when reaction time is 2 h,pH 2-3,filler ratio 1:1,the removing rate of COD reaches 12% -18%,B/C increases from 0.07 to 0.11,and biodegradability is still rather poor. For ozone oxidation method,when the ozone dosage is 25 g/h and reaction time 2.0 h,the COD removing rate reaches 25%,B/C can increase from 0.07 to 0.35 substantially,being advantageous to the subsequent biochemical treatment.

Key words: salt-containing wastewater, micro-electrolytic, ozone, advanced treatment

摘要： 针对某石化企业含盐污水的深度处理，开展了微电解氧化和臭氧氧化对比试验研究，比较了2种方法的处理效果。结果表明，对于微电解氧化法，在反应时间为2 h，pH为2～3，填料比为1∶1的条件下，COD去除率为12%～18%，B/C可从原水的0.07升高到0.11，B/C提高幅度小，出水可生化性仍较差，且产生较多沉渣；对于臭氧氧化法，当臭氧投加量为25 g/h，反应时间为2.0 h时，COD去除率达25%，B/C可从原水的0.07升高至0.35，B/C大幅提高，利于后续进一步生化处理。

关键词: 含盐污水, 微电解, 臭氧, 深度处理

CLC Number: 

• X703.1