纯氯消毒方式对控制氯胺消毒管网中余氯减少的研究  

Control of residual chlorine reduction in chloramine disinfection network by chlorine disinfection method

作　　者：邓俊贤 邝金勇 邓光源 罗晓敏 温韶雄 潘文继 

机构地区：[1]佛山市水业集团有限公司西江供水分公司,广东佛山528100

出　　处：《供水技术》2015年第6期22-26,共5页Water Technology

摘　　要：针对氯胺消毒的给水管网中发生硝化作用造成末梢水总余氯不达标等水质问题进行了探讨分析,根据实验室烧杯试验结果,提出了对给水管网进行纯氯气消毒的生产性试验。结果表明,通过定期对氯胺消毒的给水管网进行纯氯消毒,能有效提升管网末梢水水质,同时减少了净水生产消毒药剂的消耗。据统计,在控制出厂水总余氯保持1.0~1.2 mg/L的条件下,定期对给水管网实施纯氯消毒,可使管网末梢水总余氯平均值由0.06 mg/L提升至0.42 mg/L,另一方面生产氯耗下降约4%,生产氨耗下降约12%。The issues of total residual chlorine unqualified due to nitrification in water supply network adopting chloramine disinfection were discussed and analyzed. According to the results of jar test,a full-scale experiment of chlorine disinfection was put forward in water supply network. The results indicated that regular chlorine disinfection could improve the water quality of terminal tap water effectively,and reduce disinfectant consumption in tap water production. According to the statistics,the average residual chlorine in the terminal tap water could improve from 0. 06 mg / L to 0. 42 mg / L by regular chlorine disinfection under the condition of total residual chlorine in finished water of 1. 0 mg / L to1. 2 mg / L. On the other hand,the productive chlorine consumption was reduced about 4%,and ammonia consumption was decreased about 12%.

关 键 词：给水管网 氯胺消毒 纯氯消毒 硝化反应 余氯 氯耗 

分 类 号：TU991.25[建筑科学—市政工程]