| 饮用水处理中有机物分子量分布规律 |
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| 引用本文： | 陈卫,李敏,林涛.饮用水处理中有机物分子量分布规律[J].解放军理工大学学报,2009,10(2):160-164. |
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| 作者姓名： | 陈卫 李敏 林涛 |
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| 作者单位： | 陈卫,CHEN Wei(河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098;河海大学环境科学与工程学院,江苏,南京,210098);李敏,林涛,LI Min,LIN Tao(河海大学环境科学与工程学院,江苏,南京,210098)
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，江苏省自然科学基金 |
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| 摘 要： | 为了对不同水源水以针对性的强化工艺提高有机物去除率,以超滤膜法分析了长江下游段水源水经常规工艺及活性炭处理出水中溶解性有机物(DOC)的分子量(MW)分布,以有各工艺单元对有机物的去除效应.结果表明:长江水源水以小分子量的有机物为主(小于10 k Dalton的有机物占64.40%);常规工艺对大分子量有机物去除率很高,尤其对MV为10 k Dalton以上的有机物去除率达67%以上,但对小分子量有机物去除率很低.常规工艺对Mw为1～10 k Dalton的有机物去除率仅为28%,而MW小于1 k Dalton的有机物反而增加了30%左右.经活性炭处理后,MW小于1 k Dalton的有机物去除率达84%;出水UV254值及SUVA值比滤后水分别下降25%和10%.
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| 关 键 词： | 分子量分布 溶解性有机炭 活性炭 深度处理工艺 常规处理工艺 |
Molecular weight distr ibution of organics during
drinking water treatment |
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| CHEN Wei,LI Min and LIN Tao.Molecular weight distr ibution of organics during
drinking water treatment[J].Journal of PLA University of Science and Technology(Natural Science Edition),2009,10(2):160-164. |
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| Authors: | CHEN Wei LI Min and LIN Tao |
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| Institution: | 1.State Key Laboratory of Hydrology-Water Resources & Hydranlic Engineering;Hohai University;Nanjing 210098;China;2.College of Environmental Science and Engineering;China |
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| Abstract: | In order to enhance the removal rate of dissolved organics in different water sources,water in the lower reaches of Yangtze River after conventional treatment as well as activated carbon process was analyzed by Ultrafiltration.The results show that organics with low MW take great part in Yangzi River,in which the proportion of the organics with MW<10 k Dalton accounts for 64.40%.The conventional treatment processes remove the organics with high MW effectively.The removal rate of organics with MW>10 k Dalton... |
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| Keywords: | molecular w eig ht dist ribut ion DOC ( dissolved org anic carbon) act ivated carbon advanced
t reatment process conventional tr eatment pro cess |
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