多因素影响下SUFR系统除磷效果研究  

Study on phosphorus removal effects of SUFR process under influences of different factors

作　　者：张园[1] 罗固源[1] 许晓毅[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《环境工程学报》2011年第10期2247-2251,共5页Chinese Journal of Environmental Engineering

基　　金：科技部国际合作项目(2007DFA90660);重庆市科技攻关计划项目(CSTC;2006AA7003;CSTC;2006BB7305)

摘　　要：在进水COD浓度控制在300～400 mg/L范围内,针对SRT、C/N和C/P 3个因素对TP的影响设计了正交实验,并在此基础上进行回归正交实验。实验结果显示:SRT、C/N、C/P 3个因素中SRT对厌氧释磷和好氧吸磷速率的影响最大,随着SRT的增大,系统除磷效率逐渐下降。C/N和C/P的增长使系统进水TN、TP浓度降低,对活性污泥的增殖有抑制作用,进而使厌氧释磷速率和好氧吸磷速率降低。C/P对SUFR系统TP去除率影响较大,但其主要通过进水TP浓度的改变而改变去除率的基数。An orthogonal test was designed in order to explore the effects of SRT,C/N and C/P on phosphorus removal when the influent COD concentration was 300～400 mg/L.The results showed that SRT was the main factor affecting the phosphorus release and uptake rates.The phosphorus removal efficiency decreased with increasing SRT.The growth of influent C/N and C/P inhibited the proliferation of the activated sludge by decreasing the influent TN and TP concentration and thereby inhibited the phosphorus release and uptake rates.C/P also greatly affected the TP removal rate of SUFR system,but it mainly changed the base of the removal rate though changing the influent TP.

关 键 词：SUFR系统 生物除磷 SRT C/N C/P 

分 类 号：X505[环境科学与工程—环境工程]