混凝沉淀深度处理混合化工污水二级出水的研究  

Advanced treatment of secondary effluent of mixed chemical wastewater by coagulation and sedimentation

作　　者：王申 许立群 张有仓 陈恒宝 

机构地区：[1]镇江市水业总公司,江苏镇江212001

出　　处：《工业用水与废水》2012年第1期28-31,共4页Industrial Water & Wastewater

摘　　要：利用混凝沉淀工艺对混合化工污水二级出水进行试验研究,结果表明:采用PAC和PAM混合投加混凝效果最佳,最佳投加量分别为100、1 mg/L,最佳反应时间为30 min。在此工况下,出水CODCr、TP的质量浓度可分别达到68、0.35 mg/L,色度可达31度,满足江苏省DB 32/939—2006《化学工业主要水污染物排放标准》中的一级标准要求,新增总处理成本为0.33元/m3。The experiment on treatment of secondary effluent of mixed chemical wastewater by coagulation and sedimentation was studied. The results showed that： the best coagulation effect was obtained with the mixed addition of PAC and PAM, the optimal dosage of the two agents were 100 and 1 mg/L respectively, the optimal reaction time was 30 min. Under the above condition, the average mass concentration of CODcr and TP of the effluent water reached 68 and 0.35 mg/L respectively, the chroma was 31 degree. The effluent water quality met the specification for grade 1 in DB 32/939--2006 Jiangsu Provincial Discharge Standard of Main Water pollutants for Chemical Industry, the total additional cost for the treatment was 0.33 yuan/m3.

关 键 词：混凝沉淀 混合化工污水 聚合氯化铝 聚丙烯酰胺 

分 类 号：X703.1[环境科学与工程—环境工程]