单级A/O程序HSMBR系统性能和亚硝酸型SND  

System Characteristics and SND Via Nitrite in a Single-stage Anoxic/aerobic Hybrid Submerged Membrane Bioreactor

作　　者：万兴[1] 黄海燕[2] 万金保[1] 

机构地区：[1]南昌大学环境科学与工程学院,江西南昌330031 [2]江西蓝天学院建工系,江西南昌330029

出　　处：《南昌大学学报（理科版）》2007年第4期365-369,373,共6页Journal of Nanchang University(Natural Science)

基　　金：江西省环境保护局科技计划资助项目(200607)

摘　　要：采用单级A／O程序复合膜生物反应器（HSMBR）处理高氨氮废水，研究了在低DO浓度下系统对有机物、氨氮和总氮的去除效率。研究结果表明：在低DO浓度下，COD，氨氮的平均去除率分别为94．4％和92．8％。由于进水COD／TN比仅为2．01，则使得总氮平均去除率仅为69．4％，但是当系统亚硝化累积率从60．5％～67．1％提高到83．5％。86．4％时，系统总氮去除率提高了17．7％。另外，DO在0．5—1．0mg·L^-1时，TN去除率为69．4％，亚硝酸盐氮累积率在60．5％-89．5％之间，可见维持低DO浓度可以实现亚硝酸型同时硝化反硝化。The COD,ammonia and total nitrogen（TN） removal efficiency were studied in the paper at low DO concentration in single - stage anoxic/aerobic Hybrid Submerged Membrane bioreactor treating wastewater with high ammonia concentration. The experimental results showed that the COD and ammonia average removal efficiency reach 94.4% and 92.8% ,respectively. Because of the low influent COD/TN ratio（ =2.01 ）,the TN average removal efficiency was only 69.4% ,while TN removal efficiency could be increased by 17.7% with the nitrite accumulation ratio increasing from 60.5% -67.1% to 83.5% -86.4%. Moreover,when DO was 0.5 - 1.0 mg · L^-1 , TN removal efficiency,nitrite accumulation ratio reach 69.4% ,60.5% -89.5% respectively simultaneous nitrification and denitrification（SND） via nitrite at low DO level could be realized.

关 键 词：A/O 亚硝酸型SND 高氨氮废水 复合膜生物反应器(HSMBR) 

分 类 号：X703[环境科学与工程—环境工程]