所属单位：

环境与市政工程学院

发表刊物：

2014 IWA World Water Congress & Exhibition

关键字：

中文关键字：PVDF/EVOH共混膜；膜污染控制；相互作用力评价；亲水性，英文关键字：PVDF/EVOH blend membrane; membrane fouling control

摘要：

PVDF/EVOH (P/E) blend membranes were prepared via immersion precipitation process for improving the antifouling property of PVDF membrane. In order to get the optimum conditions for preparing P/E membrane, the effects of P/E weight ratio and coagulation bath temperature on the properties of the blend membrane were investigated. Provided an insight into the anti-fouling ability of P/E blend membrane, by comparing the fouling behaviors and membrane-foulant interaction force of P/E blend membrane with those of PVDF membranes. Results shown that the P/E blend membranes appeard to be more hydrophilic, with a higher pure water flux and BSA rejection rate than the PVDF membrane. In addition, the integrated performance of P/E membrane is the best when P/E weight ratio and coagulation bath temperature were fixed at 9/1 and 20℃, respectively. From the antifouling ability analysis, it was found that the flux decline rate and extent of P/E membrane reduced significantly compared to pure PVDF membrane. This phenomenon, in conjunction with the interaction force measurements, demonstrate that the membrane-fouling interaction force was reduced by the addition of EVOH, which could weak the adsorption and accumulation of foulants on the membrane surface or membrane pores and result in a mitigation membrane flux decline rate.

备注：

王磊

合写作者：

高哲,米娜

第一作者：

王旭东,吕永涛,王磊,苗瑞

论文类型：

期刊论文

卷号：

卷：

期号：

期：

页面范围：

页：

是否译文：

否

发表时间：

2014-10-01