低碳源、低能耗型改良A^2/O工艺的脱氮除磷研究  

Research on Phosphorus and Nitrogen Removal by Modified A^2/O Process with Low-carbon and Low-energy Consumption

作　　者：杨殿海[1] 宋拥好[1] 谭巧国[1] 杨企星 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]可事托环保设备<上海>有限公司,上海200030

出　　处：《中国给水排水》2006年第23期18-21,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2005AA6010100122)

摘　　要：介绍了一种新型的脱氮除磷工艺及其运行情况。该工艺是对传统A2/O工艺的改进(可称为改良型A2/O工艺),它采用了后置反硝化系统以及厌氧池碳源分流技术和回流污泥预缺氧反硝化技术,以提高系统的脱氮除磷效果。研究结果表明:在进水COD≥300 mg/L,TN为40.3 mg/L,TP为3.82 mg/L时,对TN、TP及COD的去除率分别可达70%、86%和88%;当COD<300 mg/L时,对TP的去除效果较差,但对TN和COD的去除率仍分别可达60%和85%;试验期间,污泥沉降性能良好。The modified A^2/O （MAAO） process for phosphorus and nitrogen removal is improved from the traditional A^2/O technology. In order to enhance phosphorus and nitrogen removal, a postposition denitrifying system, the distributary technology of carbon source from the anaerobic phase and preanoxic denitrifying technology of recycled sludge were applied. The results demonstrate that under the condition of influent COD of 300 mg/L, TN of 40.3 mg/L, and TP of 3.82 mg/L, the removal rates of TN, TP and COD are 70% , 86% and 88% , respectively. When the concentration of COD is less than 300 rag/L, TP removal becomes ineffective, but the removal of TN and COD still reaches 60% and 85% respectively. During the experiment, the sedimentation of sludge performs effectively.

关 键 词：改良型A^2/O工艺 脱氮除磷 反硝化除磷 

分 类 号：X703[环境科学与工程—环境工程]