摘要
利用城市污水对一体化膜生物反应器脱氮除磷的特性进行研究,研究结果表明,当控制反应器内溶解氧浓度为0.5 mg/L左右时,系统在有效地去除有机污染物的同时,可达到较高的氮、磷去除率.CODcr进水为342～1 500 mg/L,出水均在40 mg/L以下,去除率在90%以上;总磷(TP)进水为4.08～31.45 mg/L,出水均在0.5 mg/L以下,去除率平均为96%;进水总氮(TN)为30.55～91.34 mg/L,去除率平均在70%以上.
The effects of a membrane bioreactor removing phosphorus and nitrogen were studied.The results showed that,when dissolved oxygen concentration was about 0.5 mg/L,CODcr,nitrogen and phosphorus could be simultaneously removed in the reactor.Under the condition of the influent concentration of CODcr,TP and TN was 342～1 500 mg/L,4.08～31.45 mg/L and 30.55～90.34 mg/L respectively,the effluent concentration of CODcr and TP was less than 40 mg/L and 0.5 mg/L respectively.The removal rates of CODcr ,TP and TN were higher than 90%,96%,70% respectively.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2007年第4期70-73,共4页
Membrane Science and Technology
关键词
脱氮除磷
污水处理
膜生物反应器
phosphorus and nitrogen removal
wastewater treatment
membrane bioreactor
