桂林第四污水处理厂A-A/O工艺生物除磷试验研究  

Study on Biological Phosphorus Removal with A-A/O Process in Guilin Fourth Sewage Treatment Plant

作　　者：游映玖[1] 邵林广[1] 江小林[1] 翁达[2] 

机构地区：[1]武汉科技大学城市建设学院,湖北武汉430070 [2]1武汉科技大学化工与资源环境学院,湖北武汉430081

出　　处：《武汉科技大学学报》2002年第2期129-131,共3页Journal of Wuhan University of Science and Technology

摘　　要：以桂林第四污水处理厂A A/O工艺处理水为试验对象 ,研究了生物除磷过程中生物厌氧放磷和好氧吸磷的规律。结果表明 ,硝酸盐的浓度≥ 5mg/L对生物除磷有明显抑制作用 ;生物厌氧放磷时间在 4～ 8h外源放磷量呈线性增加 ;曝气吸磷时间在 1～ 3h生物吸磷速率较快 ;厌氧 5h再曝气 2h吸磷量最大 ,且单位污泥最大比吸磷量为 3 .3 5× 1 0 -6,此时的耗氧速率为 0 .1 63mg/L·min。The anaerobic anoxic oxic (A A/O) process was utilized to study the principle of biological phosphorus removal.The results were as follows:the phosphorus removal was significantly inhibited by nitrate salt when its concentration was larger than 5mg/L;the phosphorus release increased linearly when the biological anaerobic phosphorus release time was set between 4～8 hours;the rate of phosphorus accumulation was rapid when the aeration phosphorus accumulation time was set between 1～3 hours It was also found that the maximum phosphorus accumulation occurred after 5 hour anaerobiosis followed by 2 hour aeration when the maximum capacity of unit sludge amounts to 3.35×10 -6 and the rate of oxygen comsumption then was 0.163mg/Lmin.

关 键 词：生物降磷 厌氧 好氧 放磷 吸磷 

分 类 号：X703[环境科学与工程—环境工程]