聚合硫酸铝铁改善膜污染的研究  

MEMBRANE FOULING CONTROL IN SUBMERGED MEMBRANE BIO-REACTOR WITH POLYMERIC ALUMINUM FERRIC SULFATE

作　　者：刘浩[1] 王军[1] 周媛[1] 奚旦立[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《水处理技术》2008年第4期31-33,共3页Technology of Water Treatment

摘　　要：采用投加聚合硫酸铝铁(PAFS)的方法来缓解SMBR中的膜污染速率。试验结果表明,投加PAFS后,SMBR中污泥的平均粒径从80μm增大到400μm,过滤总阻力从496.49×1010m-1减为138.25×1010m-1,沉积阻力从445.72×1010m-1减为129.86×1010m-1,污泥比阻变为原来的1/10;同时混合液中的生物相变得更加丰富,抽吸压力的增长速率有所降低。Membrane fouling was the main obstacle for the wide application of submerged membrane bio-reactors （SMBR）. The results of polymeric aluminum ferric sulfate （PAFS） explored to SMBR indicated that the mean particle size of microbial floes increased from 80.8μm to 400μm, the total resistance decreased from 496.49×10^10m^-1 to 138.25×10^10m^-1, the cake resistance decreased from 445.72×10^10m^-1 to 129.86×10^10m^-1. Moreover, the rising rate of suction pressure was significantly reduced and the specific sludge resistance was one 10th of that in absence of PAFS, because the addition of PAFS leads to more kinds of microorganism.

关 键 词：聚合硫酸铝铁 污泥比阻 一体式膜生物反应器 颗粒粒径分布 膜污染 

分 类 号：TQ028.8[化学工程]