化学生物絮凝工艺处理城市污水试验研究

Experimental Study on Chemical and Biological Flocculation Process for Treating Municipal Sewage

介绍了用化学生物絮凝工艺处理上海部分地区生活污水和合流污水混合的城市污水(上海竹园排放口,简称“竹园”污水)的试验研究装置及研究过程。结果表明,在絮凝池内混合液浓度为2g/L左右、HRT=35min、PAC加入量为70mg/L、PAM为0.5mg/L时,其出水平均浓度可以达到CODCr为50mg/L、TP为0.62mg/L、SS为18mg/L,BOD5为17mg/L,均优于设计要求。

Introduction on experimental study equipment ofchemical and biological flocculation prooess for treat-ing domestic wastewater and combined flow sewagemixed municipal sewge, and study procedure werepresented. The result showed that in flocculation tankMLSS=29/L, HRT=35min, Liquid PAC dosage=70mg/L,PAM=0.5mg/L, the effluent average concentrations ofCODcr, TP, SS and BOD5 could be 50mg/L, 0.62mg/L,18mg/L and 17mg/L respectively, and were betterthan designed demand.