化学生物絮凝/悬浮填料床工艺出水深度处理研究  

Study on Advanced Treatment Process for Effluent of Chemical Biological Flocculation/Suspended Packed Bed

作　　者：陈轶波[1] 夏四清[1] 张志斌[1] 余松[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《中国给水排水》2006年第9期69-72,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2002AA601320)

摘　　要：化学生物絮凝/悬浮填料床是一种新型、高效的组合工艺,中试结果表明其出水TP为0.89 mg/L、浊度为9.7 NTU、氨氮为8.8 mg/L、COD为37.3 mg/L。采用流砂微絮凝过滤工艺、复合二氧化氯消毒对其出水进行了深度处理的试验研究,运行结果表明:在微絮凝剂PAFC投量为3.1 mg/L的条件下,出水TP、氨氮和COD浓度分别下降到0.38、7.2和26.6 mg/L,浊度也降至2.2NTU;当复合二氧化氯消毒接触时间≥30 m in、游离余氯>0.5 mg/L时,消毒后出水总大肠菌群≤3CFU/L。该系统维护简单、运行稳定,出水水质优良,各项指标均达到国家《生活杂用水水质标准》(CJ/T 48—1999)。Chemical biological flocculation/suspended packed bed is a new and highly efficient process. The pilot-scale test shows that the average effluent TP, turbidity, NH3 - N and COD are 0.89 mg/L, 9.7 NTU, 8.8 mg/L and 37.3 mg/L, respectively. Flowing sand micro-flocculation filtration and chlorine dioxide synergetic disinfection were used as an advanced municipal wastewater treatment process. The results show that when the dosage of PAFC is 3. 1 mg/L, the effluent TP, turbidity, NH3 - N and COD are 0.38 mg/L, 2.2 NTU, 7.2 mg/L and 26.6 mg/L, respectively ; when the contact time of chlorine dioxide synergetic disinfection is more than 30 minutes and free residual chlorine is more than 0.5 mg/L, total coliform group is less than 3 CFU/L. This system is convenient in maintenance and steady in operation, the effluent quality is good and water quality index can meet the Miscellaneous Domestic Water Quality Standard （ CJ/T 48 - 1999 ）.

关 键 词：城市污水 深度处理 流砂微絮凝过滤 除磷 消毒 回用 

分 类 号：X703.1[环境科学与工程—环境工程]