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[1]王丽坤,王启山,刘艳芳,等.二氧化氯预氧化控制饮用水三卤甲烷生成势的研究[J].天津大学学报(自然科学版),2009,(12):1119-1122.
 WANG Li-kun,WANG Qi-shan,LIU Yan-fang,et al.THMFP Control of Drinking Water via Preoxidation of Chlorine Dioxide[J].Journal of Tianjin University,2009,(12):1119-1122.
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二氧化氯预氧化控制饮用水三卤甲烷生成势的研究()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2009年12
页码:
1119-1122
栏目:
环境科学与工程
出版日期:
2009-12-15

文章信息/Info

Title:
THMFP Control of Drinking Water via Preoxidation of Chlorine Dioxide
文章编号:
0493-2137(2009)12-1118-05
作者:
王丽坤王启山刘艳芳杨健康孙晓明
南开大学环境科学与工程学院,天津 300071
Author(s):
WANG Li-kunWANG Qi-shanLIU Yan-fangYANG Jian-kangSUN Xiao-ming
College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China
关键词:
二氧化氯预氧化三卤甲烷生成势(THMFP)
Keywords:
chlorine dioxidepreoxidationtrihalomathanes formation potential (THMFP)
分类号:
X52
文献标志码:
A
摘要:
为了减少饮用水中三卤甲烷(THMs)的生成,采用二氧化氯预氧化取代传统的预氯化.采用自制的二氧化氯,其纯度在99%以上,在避光/封口的条件下,投加2 mg/L 的二氧化氯与原水反应30 min.通过超滤膜法分析不同分子量区间三卤甲烷生成势(THMFP)的变化,发现大部分小分子物质被氯化生成THMs,经二氧化氯氧化后,发现不同分子量区间的THMFP 均有所降低,且部分大分子物质变为小分子物质,这些物质较难与氯发生反应生成THMs,说明 THMs的生成不仅与分子量有关还与分子结构相关.另外,二氧化氯预氧化对色度和浊度都有比较明显的去除效果.
Abstract:
In order to reduce the formation of THMs in drinking water,traditional prechlorination has bean replaced by preoxidation of chlorine dioxide. Chlorine dioxide adopted in the experiment was self-made with purity over 99%. Under dark/sealed conditions,2 mg/L of chlorine dioxide was added to raw water to produce a reaction lasting 30 min. Analysis with ultrafiltration membrane of the change of thihalomathanes formation potential (THMFP) with different molecular weights shows that most small molecule materials have been chlorinated into THMs. After preoxidation of chlorine dioxide, THMFPs with different molecular weights have decreased and most macromolecular materials have changed into small molecule materials,which were difficult to react with chlorine to generate THMs. Experimental results show that THM formation is related to both the molecular weight and molecular structure. In addition, preoxidation of chlorine dioxide has apparent effect on the removal of turbidity and chroma.

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相似文献/References:

[1]朱玉梅,靳正国. 预氧化在SiC基陶瓷材料烧结中的作用[J].天津大学学报(自然科学版),2003,(06):769.

备注/Memo

备注/Memo:
收稿日期:2008-09-22;修回日期:2009-03-06.
基金项目:教育部天南大共建项目. 作者简介:王丽坤(1978— ),女,博士研究生,wlkun24@sohu.com.
通讯作者:王启山,qshwang@public.tpt.tj.cn.
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