复合式膜生物反应器内的同步硝化反硝化研究  

Simultaneous Nitrification and Denitrification in Combined Membrane Bio-reactor

作　　者：韩丹[1] 汪永辉[1] 洪飞宇[2] 高品[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620 [2]兰州交通大学环境与市政学院,甘肃兰州730070

出　　处：《净水技术》2008年第1期54-57,60,共5页Water Purification Technology

摘　　要：研究了半软性填料膜生物反应器内的同步硝化反硝化现象及机理,考察了DO,C/N对有机物和氨的去除效果以及对同步硝化反硝化的影响。试验结果表明,反应器内存在较好的同步硝化反硝化效果。进水COD为800 mg/L左右,pH为7.0～8.0,HRT为10h,温度为25℃时,DO为2.5 mg/L左右,C/N为20左右的条件下同步硝化反硝化效果最好,且COD,NH+4-N,TN去除率都可以达到90%以上。Abstract Simultaneous nitrification and denitrifieation（SND） was investigated in membrane reactor filled with half-soft packing. The effects of C/N and DO on removal efficiency of COD, NH^＋4-N,TN and SND were discussed. The results showed that SND were successfully carried out in the reactor. When COD concentration in the influent was about 80Omg/L,pH was between 7.0 and 8.0,HRT was l0 h,the temperature was 25℃,the best performance of SND could be achieved under 2.5 mg/L of DO and 20 of C/N. The removal efficiency of COD, NH^＋4-N,TN all could reach 90%.

关 键 词：复合式膜生物反应器 填料 同步硝化反硝化 溶解氧 碳氮比 

分 类 号：X703[环境科学与工程—环境工程]