Development of a model for predicting trihalomethanes propagation in water distribution systems

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere Pub Date : 2006-02-01 DOI:10.1016/j.chemosphere.2005.02.002

Xin Li , Hong-bin Zhao

引用次数: 29

Abstract

The rate of Trihalomethanes (THM) formation was experimentally observed to be first-order with respect to chlorine, and first-order with respect to humic acid precursors, and the overall reaction order was second-order. THM formation rate expression was formulated as a function of the concentration of THM Formation Potential (THMFP), residual chlorine concentration, reaction time and reaction temperature. A model is developed to estimate THM in water distribution systems. Since the calculated results are close to the measured values in the distribution system, it is suggested that this model is applicable to actual water distribution systems.

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三卤甲烷在配水系统中扩散预测模型的建立

实验观察到三卤甲烷(THM)的生成速率对氯为一级反应，对腐植酸前体为一级反应，整个反应顺序为二级反应。THM生成速率表达式是THM生成势(THMFP)浓度、余氯浓度、反应时间和反应温度的函数。建立了配水系统中THM的估计模型。由于计算结果与配水系统的实测值较为接近，建议该模型适用于实际配水系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemosphere 环境科学-环境科学

CiteScore

15.80

自引率

8.00%

发文量

4975

审稿时长

3.4 months

期刊介绍： Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.