【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 m~3/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1mg/L,CN~-低于1 mg/L,总锌低于5 mg/L,出水水质达到接管要求。更多还原

【Abstract】 Different kinds of industrial wastewaters h av e b een pretreated separately by physicochemical pretreatment 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 m~3/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.更多还原