PAC/MBR用于微污染地表水处理的中试研究  

PILOT-SCALE STUDY ON PAC/MBR FOR TREATING MICRO-POLLUTED SURFACE WATER

作　　者：胡婧逸[1] 邓慧萍[1] 张玉先[1] 黎园[1] 刘子正[2] 

机构地区：[1]同济大学长江水环境教育部重点实验室,上海200092 [2]华中科技大学环境学院,湖北武汉430074

出　　处：《水处理技术》2010年第8期100-103,共4页Technology of Water Treatment

基　　金：国家建设部水体污染控制与治理科技重大专项资助项目(2008ZX07425-007)

摘　　要：采用投加粉末活性炭(PAC)的膜生物反应器(MBR)组合工艺-PAC/MBR处理微污染地表水。中试结果表明,该工艺出水水质稳定,稳定运行期间出水浊度、CODMn和氨氮分别保证在0.3NTU、1.9mg·L-1和0.2mg·L-1以下,达到生活饮用水卫生标准的要求。膜表面生物活性炭(BAC)滤层具有良好的抗压性,出水通量呈阶梯式下降,防止了持续性的大幅度衰减。混合液中悬浮态PAC和生物活性炭能吸附大部分胞外聚合物(EPS),降低溶解态胞外聚合物含量,有利于减缓膜污染。The hybrid process combined membrane bioreactor （MBR） with powdered activated carbon （PAC）-PAC/MBR was employed for micro-polluted surface water treatment. The pilot-test results show that a stable effluent quality can be achieved, with turbidity, CODMn and ammonia nitrogen lower than 0.3 NTU, 1.9 mg·L-1 and 0.2 mg·L-1 respectively during the steady operation period, all of which satisfy the sanitary standard for drinking water. The bio-activated carbon layer on membrane surface exhibits a great resistance to pump-sucking pressure, so as to guarantee the effluent flux decrease in several stages, and avoid a significant decrease. The suspended PAC and BAC particles in mixed solution can adsorb a large amount of extracellular polymeric substances （EPS）, reducing the quantity of soluble EPS as a result, which contributes to alleviate the extent of fouling.

关 键 词：微污染地表水 粉末活性炭 膜生物反应器 生物活性炭 胞外聚合物 

分 类 号：TQ028.8[化学工程]