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二次加氯下给水管网余氯衰减规律的研究

发表时间:2013-07-31  浏览量:1014  下载量:273
全部作者: 李聪,郁成罕,张可佳,巴依尔明达,虞介泽,毛欣炜
作者单位: 浙江大学建筑工程学院
摘 要: 研究给水管网中不同的初次加氯和二次加氯浓度条件下余氯的衰减规律。通过对实验数据进行分析,用传统的一级反应模型模拟氯的衰减规律,比较衰减系数和浓度的关系,得出如下结论:管网一次加氯的最优浓度值为0.60 mg·L-1左右,余氯衰减系数与一次加氯初始氯浓度成反比,而与温度、pH值成正比。此外,研究明确了在不同温度和pH值作用下,管网二次加氯的最优初始浓度的变化。
关 键 词: 市政工程;给水管网;余氯衰减;二次加氯;一级模型;最优初始浓度
Title: Research on chlorine decay in water distribution system under secondary chlorination
Author: LI Cong, YU Chenghan, ZHANG Kejia, BAYIERMINGDA, YU Jieze, MAO Xinwei
Organization: College of Civil Engineering and Architecture, Zhejiang University
Abstract: The research focused on how chlorine decayed under the first chlorination and the second chlorination in water distribution system. The first-order reaction kinetics model was used to fit the chlorine decay for analyzing the relationship between the decay parameters and chlorine concentration. The experimental results showed that the optimal initial concentration of first chlorination was about 0.60 mg稬-1. The chlorine decay coefficients was inversely proportional to initial concentration and the chlorine decay coefficients was proportional to the water temperature and the pH value. The results also clarified the effect of temperature and pH value on the optimal initial concentration of second chlorination in water distribution system.
Key words: municipal engineering; water distribution system; residual chlorine decay; second chlorination; first-order reaction model; optimal initial concentration
发表期数: 2013年7月第14期
引用格式: 李聪,郁成罕,张可佳,等. 二次加氯下给水管网余氯衰减规律的研究[J]. 中国科技论文在线精品论文,2013,6(14):1348-1352.
 
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