SBR工艺对低碳量城市污水的反硝化除磷研究  

Study of Denitrifying Phosphorus Removal from Municipal Wastewater with Low Carbon Source by SBR Process

作　　者：张红[1] 张朝升[1] 荣宏伟[1] 张可方[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《中国给水排水》2007年第7期78-81,85,共5页China Water & Wastewater

基　　金：广东省自然科学基金资助项目(04009533);广东省自然科学基金博士启动基金资助项目(5300438);建设部研究开发项目(06-K4-01);广州市科技计划项目(2004J1-C0051)

摘　　要：广州地区的城市污水含碳量低,碳、氮、磷浓度比例失调,采用传统工艺处理很难达到理想的脱氮除磷效果,为此采用SBR工艺对其进行处理,考察了该工艺的反硝化除磷效果。结果表明,在厌氧/缺氧/好氧的运行模式下,采用逐步增加缺氧段运行时间的方法可有效提高污泥的反硝化除磷性能;在试验进水水质条件下,反应器厌氧运行30 min、缺氧运行3 h、好氧运行1 h可保证对磷的稳定高效去除,出水TP<1 mg/L;ORP值无法指示缺氧反硝化与吸磷过程,pH值可作为缺氧吸磷结束的指示参数,而ORP和pH值均可作为好氧吸磷结束的控制参数。The disproportion of C, N and P and lower carbon source in municipal wastewater in Guangzhou region are always a puzzle for nitrogen and phosphorus removal using conventional processes Based on this, the effect of denitrifying phosphorus removal by using SBR was investigated. The results show that the efficiency of denitrifying phosphorus removal by sludge can be enhanced by gradually increasing the operation time of anoxic process under the anaerobic/anoxic/aerobic operation modes. 30 min for anaerobic process, 3 h anoxic process and 1 h aerobic process can effectively remove phosphorus, with TP of less than 1 mg/L in the effluent. ORP cannot indicate anoxic denitrification and phosphorus uptake, and pH can indicate the end of phosphorus uptake under anoxic condition. However, ORP and pH both can be used the control parameter for the end of phosphorus uptake under aerobic condition.

关 键 词：低碳量城市污水 反硝化除磷 氧化还原电位 PH 

分 类 号：X703[环境科学与工程—环境工程]