wangxudong
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- Professor
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- Name (English):xudong wang
- Name (Pinyin):wangxudong
- School/Department:环境与市政工程学院
- Education Level:PhD student
- Business Address:陕西省膜分离技术研究院201
- Contact Information:xudongw7904@163.com
- Degree:Doctoral degree
- Professional Title:Professor
- Status:Employed
- Academic Titles:陕西省膜分离技术研究院副院长
- Other Post:膜分离技术团队党支部书记
- Alma Mater:西安建筑科技大学
- Teacher College:环境与市政工程学院
- Discipline:Environmental Engineering
Other Contact Information
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- Email：
- Paper Publications
Influence of pretreatment on AMWD of dissolved org
Release time:2024-08-09 Hits:
- Affiliation of Author(s):环境与市政工程学院
- Journal:Water Science and Technology: Water Supply
- Key Words: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
- Abstract: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.
- Note:王旭东
- Co-author:柴进涛,康雅
- First Author:xudong wang,wanglei
- Indexed by:Journal paper
- Volume:卷：6
- Issue:期：2
- Page Number:页：99-106
- Translation or Not:no
- Date of Publication:2006-12-01