摘要
为了提高超滤-膜生物反应器(UF-MBR)的饮用水除污染效果,在其反应器中直接投加粉末活性炭进行吸附和聚氯化铝进行混凝,构建一体化超滤-膜混凝吸附生物反应器(UF-MCABR)。试验结果表明,在投药量为粉末活性炭8mg/L、聚氯化铝10mg/L时,UF-MCABR对TOC和CODMn的去除率比UF-MBR分别提高了37.1个百分点和29.8个百分点;对DOC和UV254的去除率分别提高了40.6个百分点和61.4个百分点,并取得了几乎100%的硝化效率和PO34-—P去除效率。UF-MCABR的膜污染速率较之UF-MBR显著降低。
To improve the efficiency of ultra filter-membrane bioreactor （UF-MBR） used in drinking water treatment, a new technique made use of adsorption by powdered active charcoal （PAC-C） and coagulation by polyaluminium chloride （PAC-A） were integrated with UF-MBR, forming an ultra filter-membrane coagulation adsorption bioreactor （UF-MCABR）. With additions of 8 mg PAC-C per liter of raw water and 10 mg PAC-A per liter of raw water, UF-MCABR led to decrease in TOC and CODMn by 37. 1 % and 29.8 % respectively, compared to those under UF-MBR treatment. As to DOC and UV2s4, the rate of removal using UF-MCABR were 40. 6% and 61.4% higher than those by UF-MBR. Meanwhile, nearly complete nitrification and removal of dissolved phosphate were achieved using this new technique. Furthermore, the velocity of membrane fouling of UF-MCABR developed much lower than that of UF-MBR.
出处
《给水排水》
CSCD
北大核心
2008年第8期17-21,共5页
Water & Wastewater Engineering
基金
国家“十一五”科技支撑计划项目(2006BAJ08B04)
