聚砜中空纤维膜生物反应器处理甲苯气体研究  

A Polysulfone Hollow Membrane Bioreactor for Removal of Toluene in Air

作　　者：胡芳[1] 陈洲洋 黎宝仁 黄倩茹[2,3] 何觉聪[2,3] 魏在山[2,3] 

机构地区：[1]广东食品药品职业学院化妆品与艺术设计学院,广东广州510520 [2]中山大学环境科学与工程学院,广东广州510275 [3]广东省环境污染控制与修复技术重点实验室,广东广州510275

出　　处：《环境科学与技术》2014年第8期165-169,187,共6页Environmental Science & Technology

基　　金：广东省自然科学基金项目(S2012010009816)

摘　　要：采用疏水性聚砜中空纤维膜生物反应器处理甲苯有机气体,考察了甲苯去除性能的影响因素,结果表明聚砜中空纤维膜生物反应器(MBfR)能高效处理甲苯气体,甲苯去除率可达93%。膜生物反应器启动迅速、抗甲苯负荷能力强。膜生物反应器的适宜运行条件为停留时间为12.3 s,循环液pH=7.2,喷淋密度为5.1 L/(m2·h)。MBfR系统对甲苯气体的最大去除负荷为900 g/(m3·h)。采用聚合酶链式反应-变性梯度凝胶电泳(PCR-DGGE)分子生物学方法技术研究膜生物反应器内微生物群落,结果表明,聚砜中空纤维膜生物反应器内主要有Uncultured bacterium、Rhodanobacter sp、Aeromonas hydrophila strain和Rhodococcus sp.等甲苯的降解优势菌。A polysulfone hollow membrane biofilm reactor （MBfR） for the treatment of gases containing toluene was investigated. Influences of factors on toluene removal efficiency were studied. The MBfR exhibited a high efficiency for toluene removal. Experimental results showed that the toluene removal efficiency achieved 93%, with the optimal residence time,pH value and spray density as 12.3 s, 7.2 and 5.1 L/（m2·h） respectively. The maximum removal load of toluene by MBfR was 900 g/（m3·h）. Dynamic changes of microbial community in the MBfR were assessed by polymerase chain reaction-denaturing gradient gel electrophoresis （PCR-DGGE）. Results showed that the predominant bacteria for degradation of toluene are uncultured bacterium, Rhodanobacter sp, Aeromonas hydrophila strain and Rhodococcus sp.

关 键 词：聚砜中空纤维膜生物反应器 挥发性有机物(VOCs) 甲苯 PCR-DGGE 

分 类 号：X701.7[环境科学与工程—环境工程]