分置式重力流MSBR的反硝化除磷脱氮研究  

Study on Denitrifying Phosphorus and Nitrogen Removal in Separate Gravity-flow MSBR

作　　者：张召基[1] 夏世斌[1] 汤文斐[1] 陈尧[1] 吴振斌[2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]中国科学院淡水生态与生物技术国家重点实验室,湖北武汉430072

出　　处：《中国给水排水》2007年第17期11-14,共4页China Water & Wastewater

基　　金：淡水生态与生物技术国家重点实验室开放基金资助项目(2007FB12)

摘　　要：采用新型分置式重力流MSBR处理校园生活污水,在厌氧—好氧—缺氧—膜重力流出水的运行方式下,对TP、TN、COD和NH3-N的平均去除率分别达到了89.51%、64.25%、87.27%和95.88%;缺氧段发生了反硝化吸磷,其吸磷量为好氧段吸磷量的7.12%,在没有外加碳源的条件下,缺氧段的TOC/TN>12时反硝化脱氮率>75%。分置式重力流MSBR经膜组件曝气可以有效减轻膜污染,是一种值得推广的工艺手段。A new kind of separate gravity-flow membrane sequencing batch reactor（MSBR） was utilized to treat the campus domestic wastewater. The result shows that when MSBR operates under the anaerobic/aerobic/anoxic/membrane gravity-flow filtration conditions, the average removal efficiencies of TP, TN, COD and NH3 - N are 89.51% , 64.25% , 87.27% and 95.88% respectively. Denitrifying phosphorus removal appears at the anoxic phase, and the phosphorus uptake quantity is 7.12% of that at the aerobic phase. The denitrifying nitrogen removal rate is above 75% when the ratio of TOC/TN is above 12 at the anoxic phase, and no external carbon source is added. Membrane module aeration style can effectively decrease membrane fouling.

关 键 词：分置式MSBR 重力出流 反硝化除磷 膜污染 

分 类 号：X703[环境科学与工程—环境工程]