首页|The variation of DOM during long distance water transport by the China South to North Water Diversion Scheme and impact on drinking water treatment

The variation of DOM during long distance water transport by the China South to North Water Diversion Scheme and impact on drinking water treatment

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In this study,samples were taken from three locations,upstream to downstream,along the central route project of the China South to North Water Diversion(SNWD)scheme in summer and winter.These were used to reveal the variations of dissolved organic matter(DOM)during the water transfer process,and the effects of these variations on drinking water treatment and disinfection by-products formation potential(DBPs-FP).The results showed that polysaccharides accumulate in summer and reduce in winter with flow distance,which has an important effect on the overall properties of DOM,as well as on the performance of coagulation,ultrafiltration,and the formation of DBPs.Humic substances,and their hydrophilic content,also increased in summer and decreased in winter with flow distance.In contrast,the concentration of small organic substances(MW ≤ 1000 Da)increased in both summer and winter with flow distance,which affected both nanofiltration(NF)membrane fouling and DBPs-FP.The results provide a usefill case study of spatial and temporal changes in raw water DOM during long distance water transfer and their impact on the treatment and quality of drinking water from the SNWD.

Long-distance water transferThe China South to North Water DiversionSchemeCoagulationMembrane filtrationDisinfection by-products

Hankun Yang、Yujuan Li、Hongyu Liu、Nigel J.D.Graham、Xue Wu、Jiawei Hou、Mengjie Liu、Wenyu Wang、Wenzheng Yu

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State Key Laboratory of Environmental Aquatic Chemistry,Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China

School of Environment and Municipal Engineering,Qingdao Technological University,Qingdao 266033,China

Colleges of Forestry,Northeast Forestry University,Harbin 150006,China

Department of Civil and Environmental Engineering,Imperial College London,South Kensington Campus,London SW7 2AZ,UK

School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China

State Key Laboratory of Separation Membrane Processes,School of Environment Science and Engineering,Tiangong University,Tianjin 300387,China

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Beijing Natural Science Foundation(China)National Natural Science Foundation of ChinaNational Natural Science Foundation of China

JQ210325220002652200027

2024

环境科学与工程前沿
高等教育出版社

环境科学与工程前沿

影响因子:0.545
ISSN:2095-2201
年,卷(期):2024.18(5)