投料倒置A/A/O脱氮除磷工艺中试  

Inverted A/A/O Process with Carrier Added for Nitrogen and Phosphorus Removal

作　　者：董滨[1] 周增炎[1] 高廷耀[1] 

机构地区：[1]同济大学城市污染控制国家工程研究中心,上海200092

出　　处：《中国给水排水》2004年第11期14-17,共4页China Water & Wastewater

基　　金：上海市重点学科建设项目

摘　　要：　采用投料倒置A/A/O脱氮除磷工艺在上海某城市污水厂进行了中试,着重考察了在水力停留时间为8h和较短污泥龄条件下的脱氮除磷效果。结果表明,缩短泥龄总体上有利于提高除磷效果,且不会影响硝化效果。在泥龄为6d时,出水NH3-N平均为2.0mg/L,NO-3-N为4.3mg/L,PO3-4-P为0.5mg/L;而在泥龄为4d时,平均出水NH3-N仅为2.7mg/L,去除率达到92.3%。Pilot-scale test was conducted on the suspended carrier-added inverted A/A/O process for nitrogen and phosphorus removal in a municipal wastewater treatment plant in Shanghai,and the removal efficiency was investigated under the conditions of HRT 8 h and shorter SRT.The result proves that the reduced SRT is advantageous to improving the removal efficiency of phosphorus and will not affect the nitrification effect.At SRT of 6 d,the effluent NH_3-N is 2.0 mg/L in average,with NO^-_3-N and PO^(3-)_4-P concentration of 4.3 mg/L and 0.5 mg/L respectively;while at SRT of 4 d,the effluent NH_3-N is only 2.7 mg/L in average and the removal rate reaches 92.3%.

关 键 词：城市污水处理 脱氮除磷 悬浮填料 倒置A/A/O工艺 

分 类 号：X703.1[环境科学与工程—环境工程]