所属单位：

环境与市政工程学院

发表刊物：

Water Science and Technology: Water Supply

关键字：

中文关键字：分子量分布; 二级处理水; 超滤; 膜孔径; 膜孔密度; 模型，英文关键字：AMWD; secondary effluent; ultrafiltration; pore si

摘要：

This study analyzed the characteristics of the apparent molecular weight distribution (AMWD) of the secondary effluent organic matter and investigated the effect of various applicable pretreatment technologies for ultrafiltration (UF) including coagulation, powdered activity carbon (PAC) adsorption and O3-PAC process on the AMWD of effluent and the flux decline, then the influence of molecular size distribution on the mean pore size and pore density of membrane was evaluated with the model of membrane structure parameter. The results showed: (1) after different pretreatments, the AMWD of raw water changed, coagulation could effectively remove high molecular weight organics, PAC adsorption was effective in removing low molecular weight organics, due to ozonization and PAC adsorption, O3-PAC pretreatment could remove both high molecular weight and low molecular weight organics. (2) The AMWD had great influence on membrane permeation, after different pretreatments, the AMWD of raw water changed and the variation of membrane permeation was different, too. (3) the influence factors and of the mean pore size and the membrane pore density of different pretreatments water samples were used as indexes which calculated through experiment and the model of membrane structure parameter, then the influence of AMWD in water samples on the membrane mean pore size and pore density were evaluated, which showed: low molecular weight organics could easily cause interior adsorption, and high molecular weight organics could easily cause membrane surface blocking.

备注：

王旭东

合写作者：

柴进涛,康雅

第一作者：

王旭东,王磊

论文类型：

期刊论文

卷号：

卷：6

期号：

期：2

页面范围：

页：99-106

是否译文：

否

发表时间：

2006-12-01