Abstract: The ozone oxidation+multimedium filter+UF+RO process has been used for the advanced treatment of biochemically treated wastewater in a wastewater workshop,and its treatment scale is 500 m³/h. The running results show that the membrane system works steadily,COD removing rate by ozone advanced oxidation is 67.0%,suspended solid removing rate by UF 83.3%,pollutant removing effect by RO is significant,electrical conductivity reduced to 86 μS/cm,hardness removing rate 98.1%, chlorine ion removing rate 95.1%, COD removing rate 98.3%, and total phosphorus, ammonia nitrogen and suspended solids are almost removed completely. Its effluent meets the second-level RO influent requirements.

Key words: petrochemical wastewater, ozone, ultra-fitration, reverse osmosis

摘要： 利用臭氧高级氧化+多介质过滤+超滤（UF）+反渗透（RO）工艺将污水车间已生化处理后的污水进行深度处理，处理规模为500 m³/h，运行结果表明：膜系统稳定，臭氧高级氧化对COD的去除率为67.0%，UF对悬浮物的去除率为83.3%，RO对污染物的去除效果显著，电导率降低至86 μS/cm，硬度去除率为98.1%，氯离子去除率为95.1%，COD去除率为98.3%，总磷、氨氮、悬浮物基本完全去除，出水达到了二级反渗透的进水要求。

关键词: 石化废水, 臭氧, 超滤, 反渗透

CLC Number: 

• X703.1