摘要： 对不同化工工艺废水采用物化方法（氧化还原、化学沉淀、三效蒸发、铁碳微电解、中和沉淀）分质预处理后，利用UASB+SBR工艺处理综合废水，处理量为100 m³/d。运行实践表明：物化预处理对COD、盐分、硫化物、CN^-、总锌和二氯甲烷等具有较高的去除率，整个工艺处理出水COD低于500 mg/L，盐分低于0.6%，硫化物低于1 mg/L，CN^-低于1 mg/L，总锌低于5 mg/L，出水水质达到接管要求。

关键词: 化工中间体废水, 物化预处理, UASB, SBR

Abstract: Different kinds of industrial wastewaters have been pretreated separately by physicochemical pretreat-ment processes, including redox, chemical precipitation, triple effect evaporation, ferric-carbon micro-electrolysis, and neutralized sedimentation, and UASB+SBR process has been used for treating comprehensive wastewater. The designed treatment capacity is 100 m³/d. The operation practice results show that physicochemical pretreatment has higher removing effects on COD, salinity, sulfide, CN^-, total zinc, dichloromethane, etc.. Treated by the whole process, the effluent COD is less than 500 mg/L, salinity less than 0.6%, sulfide less than 1 mg/L, CN less than 1 mg/L and total zinc less than 5 mg/L. The effluent water quality can meet the take-over requirements.

Key words: chemical intermediate wastewater, physicochemical pretreatment, UASB, SBR

中图分类号: 

• X703