[1]谢文熙,于川,李超,等.自由氯维护消毒措施抑制管道耗氯作用效果研究[J].中国给水排水,2023,39(19):41-46.
　XIEWen-xi,YUChuan,LIChao,et al.Effect of Free Chlorine Maintenance Disinfection on Controlling Pipeline? induced Chlorine Consumption[J].China Water & Wastewater,2023,39(19):41-46.
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自由氯维护消毒措施抑制管道耗氯作用效果研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第19期 页码: 41-46 栏目: 出版日期: 2023-10-01
Title:
Effect of Free Chlorine Maintenance Disinfection on Controlling Pipeline? induced Chlorine Consumption
作者:
谢文熙1， 于川2， 李超3， 马凯4
（1.齐齐哈尔市环境监测站，黑龙江 齐齐哈尔 161005；2.天津市生态环境监测中心，天津 300191；3.齐齐哈尔市讷河生态环境监控中心，黑龙江 齐齐哈尔 161300；4.天津水务集团有限公司，天津 300042）
Author(s):
XIE　Wen-xi1， YU　Chuan2， LI　Chao3， MA　Kai4
（1. Qiqihar Environmental Monitoring Station， Qiqihar 161005， China； 2. Tianjin Eco-Environmental Monitoring Center， Tianjin 300191， China； 3. Nehe Ecological Environment Monitoring Center of Qiqihar City， Qiqihar 161300， China； 4. Tianjin Water Group Co. Ltd.， Tianjin 300042， China）
关键词:
自由氯维护消毒;  管道耗氯;  余氯衰减;  给水管网
Keywords:
free chlorine maintenance disinfection;  pipeline-induced chlorine consumption;  residual chlorine decay;  water supply network
摘要:
管网水余氯浓度快速衰减会严重威胁饮用水水质安全。采用管道反应中试装置，在不同流速下对自由氯维护消毒控制措施的应用效果进行了研究，并借助一级反应动力学模型与自主开发的总氯胺衰减模型（RTCDM）对该措施抑制余氯衰减的机理进行了分析。自由氯维护消毒能够有效降低管壁反应活性，抑制管壁耗氯作用，并且该措施在自由氯消毒阶段的药剂成本较常规氯胺消毒方法降低约26.2%，是一种可行的余氯衰减控制手段。
Abstract:
The rapid decay of residual chlorine in pipe network water has posed significantly threat to the safety of drinking water quality. This paper investigated the performance of free chlorine maintenance disinfection to control chlorine decay at different flow rates in a pilot-scale pipeline reactor, and analyzed the mechanism of this measure to inhibit residual chlorine decay by means of first-order kinetics model and self-developed refined total chloramine decay model (RTCDM). Free chlorine maintenance disinfection effectively reduced the reaction activity of pipe wall, and then inhibited the chlorine consumption of pipe wall. In addition, the chemical cost of this measure at the phase of free chlorine disinfection was approximately 26.2% lower than that of the conventional chloramine disinfection method, indicating that it was a feasible method for controlling residual chlorine decay.
更新日期/Last Update: 2023-10-01