光催化/悬浮填料床预处理滆湖微污染原水  

Combined Process of Photocatalysis and Suspended Packing Bed for Pretreatment of Micro-polluted Raw Water from Gehu Lake

作　　者：郭迎庆[1,2] 陈哲[1] 雷春生[1] 王利平[1] 张玉先[2] 

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164 [2]同济大学环境科学与工程学院,上海200092

出　　处：《中国给水排水》2010年第15期72-74,78,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07421-002);住房和城乡建设部科技计划项目(2009-K7-1)

摘　　要：采用纳米TiO2光催化/悬浮填料床组合工艺预处理滆湖微污染原水。在光催化反应阶段,通过正交试验得到最佳工况如下:填料填充率为40%、紫外灯功率为20W、光照时间为3h、pH值为5,在此最佳条件下,对CODMn和NH4+-N的去除率分别为11.38%和19.56%;再经后续的悬浮填料床处理后,对CODMn和NH4+-N的总去除率可分别达到35.67%和82.58%,表明该组合工艺作为滆湖微污染原水的预处理工艺是可行的。The combined process of manometer TiO2 photoeatalysis and suspended packing bed （SPB） was used for pretreatment of micro-polluted raw water from Gehu Lake. In the photocatalysis stage, the optimal operation conditions obtained through the orthogonal experiments are as follows： suspended media packing ratio of 40%, illumination power of 20 W, illumination time of 3 h and pH of 5. Under these conditions, the removal rates of CODMn and NH4^＋ -N are 11.38% and 19.56% respectively. After the subsequent treatment in SPB, the total removal rates of CODMn and NH4^＋ - N are 35.67% and 82.58%. It is proved that it is feasible to pretreat micro-polluted raw water from Gehu Lake by the combined process.

关 键 词：光催化 悬浮填料床 微污染原水 预处理 

分 类 号：TU991.2[建筑科学—市政工程]