二氧化氯预氧化控制饮用水中的THMFP研究  

Control of THMFP in Drinking Water by Chlorine Dioxide Preoxidation

作　　者：王丽坤[1] 王启山[1] 杨健康[1] 刘艳芳[1] 李维尊[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《中国给水排水》2009年第5期56-58,共3页China Water & Wastewater

摘　　要：在避光且封口的条件下,向原水中分别投加1、2、3、4 mg/L的高纯度二氧化氯,与原水反应30 min后,水样中三卤甲烷前体物(THMFP)的总量明显减少,减少幅度为18.35%～34.37%,且对浊度和色度也有明显的去除。通过紫外光谱扫描及对TOC的测定,发现二氧化氯不能够直接矿化有机物,仅能改变有机物的化学结构或者把大分子物质氧化成小分子物质,且这些小分子物质较难与氯发生反应生成三卤甲烷(THM),从而达到控制THMFP的目的。Under the condition of avoiding light and sealing, when 1, 2, 3 and 4 mg/L chlorine dioxide is added into the raw .water, after 30 min of reaction, the total amount of THMFP is decreased significantly with decrement of 18.35% to 34.37% , and the turbidity and color are also significantly removed. The UV scan and the determination of TOC show that chlorine dioxide can not mineralize the organic compounds. It only can change their chemical structure or oxidize macromolecular substances to small molecule substances that are difficult to react with chlorine to generate trihalomethanes （THM）, so as to achieve the purpose of controlling THMFP.

关 键 词：二氧化氯 预氧化 三卤甲烷前体物 

分 类 号：TU991.2[建筑科学—市政工程]