详细信息

低碳氮比城市污水短程生物脱氮试验研究    

Short-cut nitrification and denitrification of low C/N ratio municipal wastewater in a pilot-scale research

文献类型:期刊文献

中文题名:低碳氮比城市污水短程生物脱氮试验研究

英文题名:Short-cut nitrification and denitrification of low C/N ratio municipal wastewater in a pilot-scale research

作者:邱兆富[1];周琪[2];杨殿海[2];江建权[3]

机构:[1]华东理工大学资源与环境工程学院,上海200237;[2]同济大学污染控制与资源化研究国家重点实验室,上海200092;[3]天津市政工程设计研究院,天津300051

年份:2006

卷号:26

期号:11

起止页码:35

中文期刊名:工业水处理

外文期刊名:Industrial Water Treatment

收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

基金:国家高技术研究发展计划(863)项目(2002AA601023)

语种:中文

中文关键词:城市污水;低溶解氧;短程硝化反硝化

外文关键词:municipal wastewater; low levels of dissolved oxygen; short-cut nitrification and denitrification

摘要:在常温下对低碳氮比城市污水进行了短程生物脱氮中试研究。当进水COD为130 ̄210 mg/L、m(COD)∶m(TN)为3.2 ̄4.5、水温19 ̄23℃时,通过控制低氧曝气区的DO为0.2 ̄0.6 mg/L,在低氧—好氧(LO)和缺氧—低氧—好氧(ALO)两种工艺中均实现了短程硝化反硝化过程。当HRT为8 h、污泥回流比和内回流比分别为1和2、MLVSS为1 900 mg/L时,LO、ALO工艺的TN去除率分别达到64%和74%。
A pilot-scale biological research has been made for study on short-cut nitrification and denitrification of low re(COD): m(TN) ratio municipal wastewater under normal temperature. When the influent COD is 130- 210 mg/L, m(COD) : m(TN) ratio is 3.2- 4.5, and the water temperature is 19-23℃, by controlling dissolved oxygen in the main aeration tank between 0.2- 0.6 mg/L short-cut nitrification and denitrification has been achieved in low levels of oxygen-oxic(LO) and anoxic-low levels of oxygen-oxic(ALO) processes. Therefore, as the HRT is 8 h, backflow activated sludge ratio is 1.0, mixed liquid recycle ratio is 2.0, and MLVSS is 1 900 mg/L, TN removal rates of LO and ALO process are up to 64% and 74% respectively.

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