新型单级A/O程序无回流复合膜生物反应器处理氨氮废水的试验  

EXPERIMENT ON THE TREATMENT OF WASTEWATER WITH HIGH AMMONIA CONCENTRATION IN SINGLE-STAGE ANOXIC/AEROBIC HYBRID SUBMERGED MEMBRANE BIOREACTOR

作　　者：万兴[1] 廖志民 万金保[1] 

机构地区：[1]南昌大学环境科学与工程学院教育部鄱阳湖湖泊生态与生物资源利用实验室,江西南昌330046 [2]金达莱环保,江西南昌330108

出　　处：《环境工程》2007年第5期10-13,共4页Environmental Engineering

基　　金：江西省环境保护局科技计划项目(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,CODCr、氨氮的平均去除率分别为94.4%和92.8%。由于进水CODCr/TN值仅为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,维持低DO浓度可以实现亚硝酸型同时硝化反硝化反应。The removal rates of COD_ Cr ,ammonia and total nitrogen(TN) were studied 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_ Cr and ammonia average removal rate reach 94.4% and 92.8%,respectively.Because of the low influent COD_ Cr /TN ratio(=2.01),the TN average removal rate was only 69.4%,while TN removal rate could be increased by 17.7% with the nitrite accumulation ratio increasing from 60.5%～67.1% to 83.5%～86.4%.Moreover,simultaneous nitrification and denitrification (SND) via nitrite at low DO level could be realized.

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

分 类 号：X703[环境科学与工程—环境工程]