投加粉煤灰对膜生物反应器膜过滤特性的影响  

Effects of coal fly ash addition on MBR filtration performance

作　　者：郑力菲[1] 伍昌年[1] 汤利华[1] 汪煦阳[1] 李明德[1] 杨艳灵[1] 胡晓波[1] 

机构地区：[1]安徽建筑工业学院环境与能源工程学院,合肥230601

出　　处：《安徽建筑工业学院学报（自然科学版）》2012年第2期74-76,共3页Journal of Anhui Institute of Architecture(Natural Science)

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07316-002);安徽省教育厅资助项目(KJ2011B048);安徽建筑工业学院大学生科技创新项目(C11005)

摘　　要：向膜生物反应器(MBR)中投加粉煤灰(CFA),通过分析MBR系统中膜通量和对污染物的影响,考察投加粉煤灰对MBR系统过滤特性的影响。结果表明,运行10d后,未投加和投加CFA的MBR系统的膜通量分别降至初始的56.3%和78%;磷和COD的去除率分别达60%和90%以上,污泥中胞外聚合物(EPS)浓度有很明显的降低。由此表明,投加粉煤灰可减缓膜污染,延长膜的过滤周期。By analyzing the change of membrane flux and filtration resistance in MBR with addition of coal fly ash（CFA）,the influence of coal fly ash on MBR filtration performance and the removal efficiency of phosphors were investigated. After 10 d of operation,the membrane flux in MBR with and without addition of CFA is decreased to56.3% and78% of the initial values, he removal efficiency of phosphorus is above 60% and 90%, respectively. The concentration of extracellular polymeric substances （EPS） of sludge decreased obviously. It is found that the addition of CFA can alleviate membrane fouling and prolong membrane filtration cycle.

关 键 词：膜生物反应器 粉煤灰 膜通量 总磷 化学需氧量 胞外聚合物 

分 类 号：X703[环境科学与工程—环境工程]