Pilot Study on Nanofiltration Combined with Ozonation and GAC for Advanced Drinking Water Treatment  

作　　者：薛罡 何圣兵 王欣泽 

机构地区：[1]College of Environmental Science and Engineering, Dong Hua University, Shanghai 200051 [2]School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240

出　　处：《Journal of Donghua University(English Edition)》2004年第6期104-108,共5页东华大学学报（英文版）

基　　金：This work is supported by Fok Ying Tung Education Foundation (No. 94004),Shanghai Natural Science Foundation(No.04ZR 14010)and Laboratory of Water Quality Science & Water Environment Recovery Engineering of Beijing.

摘　　要：A pilot-scale study of advanced drinking water treatment was carried out in test site, and a combination of ozonation, granular activated carbon (GAC) and nanofiltration was employed as the experimental process. By optimizing the operational parameters of ozonation and GAC, a large quantity of micro-pollutants in drinking water was removed, which made the post-positioned nanofiltration operate more reliably. It was evident that nanofiltration shows good performance for removing residual organic matter, meantime partial minerals can also be retained by nanofiltration. Therefore the quality of drinking water can be further improved. In addition, NF membrane fouling and scaling can be solved by concentrate recycling, anti-scalant dosing and chemical rinsing effectively. By GAC adsorption for the residue chlorine and ozone self-decomposition, their oxidation on NF membrane material can be eliminated completely.A pilot-scale study of advanced drinking water treatment was carried out in test site, and a combination of ozonation, granular activated carbon (GAC) and nanofiltration was employed as the experimental process. By optimizing the operational parameters of ozonation and GAC, a large quantity of micro-pollutants in drinking water was removed, which made the post-positioned nanofiltration operate more reliably. It was evident that nanofiltration shows good performance for removing residual organic matter, meantime partial minerals can also be retained by nanofiltration. Therefore the quality of drinking water can be further improved. In addition, NF membrane fouling and scaling can be solved by concentrate recycling, anti-scalant dosing and chemical rinsing effectively. By GAC adsorption for the residue chlorine and ozone self-decomposition, their oxidation on NF membrane material can be eliminated completely.

关 键 词：DRINKING water  ADVANCED treatment  ozonation  GAC adsorption  NANOFILTRATION 

分 类 号：N[自然科学总论]