A^2/O+硫磺填料柱组合工艺脱氮除磷的效果  

Denitrification and dephosphorization efficiencies of an A^2/O+ sulfur-packed column combined process

作　　者：林静[1] 慕志波[1] 杨琦[1] 尚海涛[1] 王国庆[2] 

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100083 [2]佳木斯市环境保护监测站,佳木斯154002

出　　处：《环境工程学报》2012年第6期1780-1784,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(40102027;50578151);北京市自然科学基金资助项目(8052017;8092025);北京市教委产学研项目(51900265005);国家水体污染控制与治理科技重大专项(2009ZX07207-008-4-2)

摘　　要：以某城市污水厂进水为研究对象,采用A2/O+硫磺填料反应柱组合工艺,考察其对COD、总氮、总磷以及溶解性磷处理效果的改善。组合工艺出水水质稳定后,连续运行55 d,并对工艺的出水进行常规指标分析。结果表明:组合工艺的脱氮除磷效果较单个A2/O工艺都得到了较大的改善,而COD去除效果变化不大。A2/O系统对COD有良好的去除效果,出水的COD平均去除率能达到94%;TN和TP去除效果相对较差,出水平均去除率分别为60%和57.4%。经硫磺填料反应柱的脱氮除磷作用,系统出水TN去除率提高到84%,TP去除率提高到69.8%,COD去除率变化不大,升高到95.3%。An integrated process, in which a sulfur-packed column for TN ＆ TP further treatment was in- stalled after an A2/O process and influent of a municipal sewage treatment plant was used, was applied to im- prove the incompetent denitrification and dephosphorization efficiencies. With effluent conventionally and period- icaliy analyzed, the process ran continuously for 55 days after the quality of effluent had become stable. The re- suits show that denitrification efficiency was largely improved by a sulfur-packed column, while COD removal ef- ficiency practically staying the same. Mean COD removal efficiency of the effluent from improved A2/O process was 94% , with TN and TP removal efficiencies of 60% , 57.4% , respectively. Further processed by a sulfur- packed column, mean concentration of TN could be decreased with removal efficiency enhancing to 84%. Similarly, mean concentration of TP was decreased with removal efficiency enhancing to 69.8%. However, COD removal efficiency was scarcely enhanced to 95.3%.

关 键 词：脱氮 除磷 A2/O 硫磺填料反应柱 

分 类 号：X703.1[环境科学与工程—环境工程]