低碳城市污水反硝化除磷试验  

EXPERIMENT ON DENITRIFYING PHOSPHORUS REMOVAL FROM LOW CARBON SOURCE URBAN WASTEWATER

作　　者：荣宏伟[1] 彭永臻[1] 张朝升[2] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100022 [2]广州大学土木工程学院,广州510006

出　　处：《环境工程》2008年第1期11-14,共4页Environmental Engineering

基　　金：国家自然科学基金(50578044);广东省自然科学基金(5300438);建设部研究开发项目(06-k4-01)

摘　　要：采用序批式生物膜反应器(SBBR),基于缺氧吸磷理论,在(AO)-SBBR运行过程中引入一个缺氧段形成了一个全新的(AO)2-SBBR运行系统,经过4个阶段的培养驯化,反硝化除磷菌占全部聚磷菌数量的比例从14.82%增长到63.04%。在进水CODCr、总磷、总氮和氨氮浓度分别为156.41、4.64、33.08和30.64mg/L的条件下,出水总磷、总氮和氨氮浓度分别为1.06、17.55和4.32mg/L,相应去除率分别达到77.15%、46.94%和85.9%,有效解决了低碳城市污水同步脱氮除磷过程中有机物不足的问题。An innovative anaerobic-aerobic-anoxic-aerobic sequencing batch biofilm reactor((AO)_2-SBBR)was developed by introducing an anoxic phase in the anaerobic-aerobic sequencing batch biofilm reactor((AO)-SBBR)based on the theory of denitrifying phosphorus removal in the experiment.The proportion of denitrifying phosphorus removal bacteria(DPB)increased from 14.82% to 63.04% of total PAOs by four stages of selection and domestication.When the concentration of COD_Cr,TP,TN and NH+_4-N of influent was 156.41,4.64,33.08 and 30.64 mg/L respectively,the concentration of TP,TN and NH+_4-N of effluent was 1.06,17.55 and 4.32 mg/L.The efficiency of TP,TN and NH+_4-N removal was alternatively 77.15%,46.94% and 85.9%.The(AO)_2-SBBR process was effective to solve the affect of low COD_Cr concentration on simultaneous biological phosphorus and nitrogen removal from urban wastewater.

关 键 词：低碳城市污水 同步脱氮除磷 反硝化除磷 (AO)2-SBBR工艺 

分 类 号：X703[环境科学与工程—环境工程]