固定化包埋亚硝酸菌短程脱氮与同步除磷工艺研究  

Study on shortcut nitrification and simultaneous phosphorus removal using immobilized nitrosobacteria

作　　者：古创[1,2] 董良飞[1,2] 张凤娥[1] 杨彦[1] 

机构地区：[1]江苏工业学院环境与安全工程学院,常州213164 [2]清华大学环境科学与工程系环境模拟与污染控制国家联合重点实验室,北京100084

出　　处：《环境工程学报》2010年第3期526-530,共5页Chinese Journal of Environmental Engineering

基　　金："十一五"国家科技支撑计划项目(2006BAC19B01)

摘　　要：为实现常温下低碳源城市生活污水的低能耗脱氮除磷,采用固定化技术和厌氧/好氧/缺氧(AOA)工艺耦合与游离组进行了对比实验研究。在温度为25±1℃、pH为8.0±1、DO为1±0.5 mg/L和HRT为9 h的条件下,两组运行结果表明,固定组具有较高的硝化效率和较强的适应能力,亚硝氮的积累率可以稳定维持在70%以上,对NH4+-N、COD和TP的去除率分别为92.2%、87.2%和81.3%,明显优于游离组。The combination of immobilization technology and the process of anaerobic/aerobic/anoxic is applied to treat urban domestic wastewater with low carbon source at normal temperatures and low energy consumption.Compared with free group under the conditions of temperature at 25±1℃,pH 8.0±1,DO 1 mg/L and HRT 9 h,the fixed group has stronger adaptability and higher nitrification efficiency,the nitrite accumulation rate keeps above 70% stably,and the removal rates of NH＋4,COD and TP are 92.2%,87.2% and 81.3%,respectively.The results show that fixed group is significantly better than free group.

关 键 词：短程硝化反硝化 固定化 亚硝化率 低碳源城市生活污水 反硝化除磷 

分 类 号：X703[环境科学与工程—环境工程]