| Pilot Study on Nanofiltration Combined with Ozonation and GAC for Advanced Drinking Water Treatment |
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| 作者姓名： | 薛罡 何圣兵 王欣泽 |
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| 作者单位： | College of Environmental Science and Engineering，Dong Hua University，Shanghai 200051，School of Environmental Science and Engineering，Shanghai Jiaotong University，Shanghai 200240，School of Environmental Science and Engineering，Shanghai Jiaotong University，Shanghai 200240 |
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| 基金项目： | 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. |
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| 摘 要： | IntroductionThe conventional process for surface water treatment,which consists of flocculation, sedimentation and filtrationcurrently, had been applied inproducingdrinkingwater formany years. Although this process can remove turbidityand bacteria in surface water effectively, only about from20% to 30% of natural organic matter ( NOM) can beeliminated. When the purified water is disinfected bychlorination, these NOMs may react with chlorine. As aresult some dis…
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Pilot Study on Nanofiltration Combined with Ozonation and GAC for Advanced Drinking Water Treatment |
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| XUE Gang,HE Sheng-bing,WANG Xin-ze.Pilot Study on Nanofiltration Combined with Ozonation and GAC for Advanced Drinking Water Treatment[J].Journal of Donghua University,2004,21(6). |
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| Authors: | XUE Gang HE Sheng-bing WANG Xin-ze |
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| Institution: | 1. College of Environmental Science and Engineering,Dong Hua University,Shanghai 200051
2. School of Environmental Science and Engineering,Shanghai Jiaotong University,Shanghai 200240 |
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| Abstract: | 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. |
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| Keywords: | drinking water advanced treatment ozonation GAC adsorption nanofiltration |
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