供水管网中余氯衰减机理及模型研究  

Research on Residual Chlorine Decay Mechanisms and Models in Water Supply System

作　　者：张迷迷 

机构地区：[1]神华宁夏煤业集团 红柳煤矿,宁夏灵武751400

出　　处：《山东工业技术》2013年第10期24-25,32,共3页Journal of Shandong Industrial Technology

摘　　要：国内外相关学者对余氯衰减机理及衰减模型进行了大量的研究,发现余氯消耗主要发生在主体水以及管壁表面。余氯在主体水中主要和水中的有机、无机物反应:水中的无机物主要与余氯发生化学和电化学反应,水中有机物与余氯发生的反应比较复杂,主要和水中NOM的组分有关。管壁表面余氯主要与存在的细菌膜和腐蚀瘤进行反应,其反应机理比较复杂,其影响因素较多。此外,余氯在主体水中的主要衰减模型有经验模型、一级动力学衰减模型、二级组合动力学衰减模型、n级模型(1<n<2)、一级平行模型、一级限制模型等,而余氯在管壁表面的衰减模型一般为零级模型和一级衰减模型。Many researches on residual chlorine decay mechanisms and models at home and abroad have been carried out. It was found that consumption of chlorine mainly occurred in bulk water and on the pipeline surface. Chlorine mainly reacted with inorganics and organics in bulk water. When met inorganics, it usually took place with chemical or electrochemical reactions, and its reactions with organics were complex for them related to the NOM compounds. On the pipeline surface, residual chlorine mainly reacted with bacterial membrane and corrosion scale, the mechanism was complicated with many influencing factors. Typical chlorine decay medels in bulk water are empiric model, first-order chlorine decay model, combined second-order chlorine decay_ model, n-order chlorine decay model, first-order parallel model, first-order restricted model and so on. Zero order kinetics model and first-order kinetics model Were the main decay model of residual chlorine on pipeline surface.

关 键 词：主体水 管壁 余氯衰减机理 余氯衰减模型 

分 类 号：TU991.2[建筑科学—市政工程]