污泥龄和污泥回流比对气提式填料型A^2/O工艺的影响研究  

Study on the influence of sludge age and sludge reflux ratio on A^2/O process

作　　者：王子龙 王祎涵 WANG Zi-long;WANG Yi-han

机构地区：[1]沈阳建筑大学市政与环境工程学院

出　　处：《节能》2019年第12期83-86,共4页Energy Conservation

基　　金：国家重点研发计划资助（项目编号：2018YFD1100500-5-3）

摘　　要：本试验以实验室配水模拟农村生活污水为处理对象,研究SRT分别为12、15、18d时与污泥回流比分别为60%、80%、100%时,系统COD、氨氮、总氮、总磷的去除率、出水浓度以及污泥特性的变化。试验结果表明SRT=15 d、污泥回流比为100%时,系统总体脱氮除磷效果最好,此时COD、氨氮、总氮、总磷的去除率分别为91.55%、91.58%、72%、59%。This experiment simulated rural domestic sewage with laboratory water distribution as the treatment object, and studied the removal rate of COD, ammonia nitrogen, total nitrogen and total phosphorus, effluent concentration and sludge characteristics of the system when SRT was 12, 15 and 18 d and the sludge reflux ratio was 60%, 80% and 100%, respectively. The test results showed that when SRT=15 d and sludge reflux ratio was 100%, the overall denitrification and phosphorus removal effect of the system was the best, and the removal rates of COD, ammonia nitrogen, total nitrogen and total phosphorus were 91.55%, 91.58%, 72% and 59%,respectively.

关 键 词：填料型A2/O工艺 污泥龄 污泥回流比 

分 类 号：X52[环境科学与工程—环境工程]