摘要
化学生物絮凝工艺是利用将化学和生物协同絮凝作用处理污水的强化一级新工艺。试验通过在不同加药量情况下化学生物絮凝和化学絮凝工艺的中试试验对比研究,得出在相同加药量条件下,化学生物絮凝污染物去除效率均优于化学絮凝工艺10%～20%。在70mg/L液体聚合氯化铝铁复配0.5mg/LPAM的加药条件下,化学生物絮凝工艺经过30min的水力停留时间,在进水CODCr为100～260mg/L,TP为2～4mg/L,SS为80～150mg/L,NH3N为10～25mg/L条件下,出水CODCr、TP、SS、NH3N满足城镇污水处理厂污染物排放二级标准。
The chemical-biological flocculation process was an emerging effective primary treatment process, with a compact integration of chemical flocculation and biological flocculation technology. From the pilot plant experiments, it is indicated that a marginal 10-20 percent removal for chemical biological flocculation process can be obtained in comparison with the chemical flocculation process alone at the same amount of flocculant and coagulant. With the dosage of 70 mg/L PAFC plus 0. 5 mg/L PAM, and influent CODcr, 100-260 mg/L, TP 2-4 rag/L, SS 80-150 mg/L, and NH3-N 10-25 mg/L, the effluent thus obtained using the chemical-biological floeculation process can meet the discharge standard of pollutants for municipal wastewater treatment plant （GB 18918--2002） at a HRT of 30 min.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2006年第1期65-68,共4页
Environmental Pollution & Control
基金
国家"863计划"资助课题(No.2002AA601320)。
关键词
城市污水
化学生物絮凝
化学絮凝
Municipal wastewater Chemical-biological flocculation Chemical flocculation
