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【英文篇名】 Molecular weight distribution and removal characters of DOM in the typical source water in south of China
【作者中文名】 乔春光; 魏群山; 王东升; 杨敏; 魏洽; 李明俊;
【作者英文名】 QIAO Chunguang 1; WEI Qunshan 1; WANG Dongsheng 1; *; YANG Min 1; WEI Qia 2; LI Mingjun 2 1. State Key Laboratory of Environmental Aquatic Chemistry; Research center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing 100085 2. Department of Environmental and Chemical Engineering; Nanchang Institute of Aeronautic Technology; Nanchang 330034;
【作者单位】 中国科学院生态环境研究中心环境水质学国家重点实验室; 南昌航空工业学院环境与化学工程系; 南昌航空工业学院环境与化学工程系 北京;
【文献出处】 环境科学学报, Acta Scientiae Circumstantiae, 编辑部邮箱 2007年 02期
期刊荣誉：中文核心期刊要目总览 ASPT来源刊 CJFD收录刊
【关键词】 分子量分布; THMFP; DOM; 超滤膜法; 物理分级;
【英文关键词】 MW distribution; THMFP; DOM; ultra-filtration; physical fractionation;
【摘要】 用超滤膜法对以东江为水源的深圳水库水体溶解性有机物(DOM)进行物理分级表征,研究了2005年3~9月原水中DOM分子量分布的连续变化特性,以及各分子量范围的DOM组分与消毒副产物三卤甲烷生成势(THMFP)之间的关系.结果表明,在此原水DOM中,相对分子量小于1000的有机物所占比例最高(平均值为41.15%(以DOC计)),这说明东江原水中DOM主要以小分子量有机物为主,此分子量范围有机物所产生的THMFP在原水中所占比例均值为32.23%.水处理研究表明,常规工艺和深度处理工艺对其DOC和THMFP的去除率均不高.对原水总DOC的贡献占第二位的是分子量在104~3×104之间的有机物(均值为24.07%),其对总THMFP的贡献率为29.09%,常规工艺对此分子量范围有机物去除效果很好.
【英文摘要】 The apparent molecular-weight (MW) distribution of dissolved organic matter (DOM) in Shenzhen reservoir supplied by Dongjiang river was studied by ultra-filtration method. And the variety of apparent MW of the DOM and the relationship between apparent MW and trihalomethane formation potential (THMFP) were also investigated with the water samples during the period from March 2005 to September 2005. As showed in the results, the an apparent MW lower than 1kDa had the largest ratio in the total DOC (dissolved ...
【基金】 国家高科技研究发展计划(863)项目(No.2002AA601120);; 国家自然科学基金(No.50578155,No.20577060)~~
【DOI】 CNKI:ISSN:0253-2468.0.2007-02-003
