进水方式与比例对UCT工艺脱氮除磷效果的影响  

Research on the Influent Distribution to Carbon Utilization in UCT Process

作　　者：郭姣[1] 高健磊[1] 李枫 杨博 

机构地区：[1]郑州大学水利与环境学院,郑州450002 [2]郑州市污水净化有限公司,郑州450002

出　　处：《河南科学》2010年第10期1331-1333,共3页Henan Science

基　　金：河南省重点科技攻关计划项目:低碳源污水脱氮除磷新工艺和应用研究(081100910300)

摘　　要：研究了进水方式与比例对UCT工艺处理城市污水同时脱氮除磷效果的影响.结果表明,外回流100%,内回流200%时,多点进水的同时脱氮除磷效果明显优于单点进水;两点进水中,当进水配比为7:3时能达到更高的除磷效果,TP去除率可达83%,比进水配比为5:5时提高10%;进水配比为5:5时的脱氮效果略占优势,TN去除率为77%,比进水配比为7:3时高4%;三点进水时,当进水配比为4:4:2条件下,TN和TP的去除率分别达到78%和88%,同时脱氮除磷效果得到加强.试验还发现,可根据监测到的回流至厌氧段的硝态氮的浓度,来判定碳源分配的合理性.A pilot-scale UCT system focusing on the treatment about sewage water was built up,tested and analyzed respectively on different influent distribution.The results showed it had better removal of nitrogen and phosphorus simultaneously on two and three inlets than it on one under the same conditions.Setting the internal recirculating ratio 200 %,the external recirculating ratio 100 %,the state which had a influent distribution ratio of 7：3 achieved a higher total-phosphorus removal up to 83 %,in excess 10 % of the state in distribution of 5：5,which has a slight advantage about 4 % than the former in total-nitrogen removal.The state of three inlets enhanced the nitrogen and phosphorus removal simultaneously by improving the carbon use proportion in removing nitrogen and phosphorus with a TN removal of 78 % and a TP removal of 88 %.Also the monitoring nitrate concentration of the recycling liquid to anaerobic band could be an indication to adjust the influent distribution.

关 键 词：UCT 进水分配 脱氮除磷 

分 类 号：X703.1[环境科学与工程—环境工程]