HRT对Carrousel 2000氧化沟处理城市污水的影响  

Influence of HRT on Carrousel 2000 oxidation ditch treating urban sewage

作　　者：林峰[1] 张朝升[1] 荣宏伟[1] 

机构地区：[1]广州大学土木工程学院市政工程系,广州510006

出　　处：《工业用水与废水》2008年第5期29-32,共4页Industrial Water & Wastewater

基　　金：广东省科技攻关项目(2004B33301006);广州市建委基金项目(2006)

摘　　要：就Carrousel2000氧化沟处理城市污水过程中水力停留时间(HRT)对有机物、氨氮、总氮去除的影响进行了研究。结果表明,在城市污水水质变化幅度不大的情况下,适当减小HRT并不会对有机物和NH3-N的去除率造成大的影响。当HRT从24h减小到8h,COD去除率保持在93%以上,NH3-N去除率保持在96%以上。但是,HRT对于总氮去除的影响较大,当HRT从24h减小到8h,TN去除率迅速从94.0%下降到51.7%。通过本试验确定出最优的HRT为10h,此时TN去除率达87.3%。The influence of hydraulic retention time（HRT） on removal of orgainc matter, ammonia nitrogen, total nitrogen during the urban sewage treatment by Carrousel 2000 oxidation ditch were studied. The results showed that, under the condition that the sewage quality did＇t change greatly, appropriate diminution of HRT had little influence on the removal rate of organic matter and NH3-N. When the HRT decreased from 24 h to 8 h, the removal rate of COD and NH3-N maintained above 93% and above 96% respectively; however, the total nitrogen removal was greatly influenced by HRT, and the removal rate decreased from 94.0% to 51.7 % promptly under the same condition. According to the experiment, 10 h was determined to be the optimal HRT for TN removal, and the removal rate under this condition reached 87.3%.

关 键 词：CARROUSEL氧化沟 水力停留时间 生物脱氮 污水处理 

分 类 号：X703.3[环境科学与工程—环境工程]