复合倒置A^2/O工艺优化运行参数研究  

Research on the optimal operational parameters of compound inverted A^2/O process

作　　者：张辰[1] 谭学军[1] 

机构地区：[1]上海市政工程设计研究总院,上海200092

出　　处：《给水排水》2009年第11期25-28,共4页Water & Wastewater Engineering

基　　金：上海市科学技术委员会资助课题(072312003)

摘　　要：结合污水处理厂升级改造开展中试研究,考察水力停留时间(HRT)、污泥龄(SRT)和回流比等运行参数对复合倒置A2/O工艺处理性能的影响,优化工艺运行参数。试验结果表明,在常温和低温条件下,复合倒置A2/O工艺所需泥龄较短,当SRT为12 d时,既可保证良好的硝化水平,又可提高除磷效果;当回流比为200%时,可获得良好的同步脱氮除磷效果。Using pilot scale experimental equipment, the optimal operational parameters were studied by investigating the influence of hydraulic retention time （HRT）, sludge age （SRT） and return ratio on the removal of pollutants in compound inverted A2/O process. The experimental results showed that, under normal and low temperature, the compound inverted A2/O process could be operated under relatively short SRT. When SRT was 12 d, nitrification reaction could remain in higher level, and phosphorus removal could be increased. When return ratio was 200%, the compound inverted A2/O process showed better removal effect of nitrogen and phosphorus.

关 键 词：倒置A2/O工艺 复合工艺 生物脱氮除磷 污水处理厂 

分 类 号：X505[环境科学与工程—环境工程] TM621.2[电气工程—电力系统及自动化]