净水技术2023，Vol.42Issue(z2)：24-29,6.DOI:10.15890/j.cnki.jsjs.2023.s2.004
小型次氯酸钠发生器在二次供水站补氯消毒中的应用
Application of Small Sodium Hypochlorite Generator in Chlorine Replenishment Disinfection of Secondary Water Supply Station
林朋飞 1邵淑梅 1王常海 2孙国鹏 1王涛 1殷晓岚3
作者信息
- 1. 苏州久征水务科技有限公司,江苏苏州 215004
- 2. 山东新日电气设备有限公司,山东济南 250102
- 3. 济南水务集团有限公司,山东济南 250002
- 折叠
摘要
Abstract
In order to solve the problem of insufficient residual chlorine in the secondary water supply equipment of the urban pipe network,the paper used a small sodium hypochlorite generator as a chlorine supplementation device to study the application of sodium hypochlorite generator in secondary water supply and chlorine supplementation,and summarized the existing problems and proposes solutions.The project used a small sodium hypochlorite generator with an effective chlorine output of 300 g/h as a chlorine supplementation equipment,and selected a secondary water supply station with an underground semi-closed structure as the research object to study the safety,self-control and effect of sodium hypochlorite generator in the process of secondary water supply and chlorine supplementation.Firstly,the device used honeycomb ceramic carrier supported noble metal Pt catalyst to catalyze the removal of hydrogen,which solved the possible safety problems of by-product hydrogen during operation.The results showed that under the condition of preheating temperature of 50℃,the hydrogen removal ratio was 100％.After stable operation,the final temperature of the hydrogen digestion device was ≤80℃;secondly,under the condition of high temperature in summer,the inlet water temperature of the secondary supply station was 36℃,and the residual chlorine was 0,the equipment started the high temperature operation mode.The residual chlorine in the secondary water supply effluent was 0.25～0.33 mg/L,and the residual chlorine in the peripheral water was 0.09～0.16 mg/L,both of which met the disinfection requirements.At the same time,the concentration of by-product chlorate in the prepared sodium hypochlorite solution was 115～125 mg/L,which cowld not cause a large fluctuation of chlorate after being added to the water body.According to statistics,the salt consumption of small sodium hypochlorite generator was 4.5 kg/kg available chlorine,and the power consumption was 5 kW·h/kg available chlorine.关键词
次氯酸钠发生器/氢气消解/二次供水泵站/余氯/氯酸盐/补氯Key words
sodium hypochlorite generator/hydrogen digestion/secondary water supply pump station/residual chlorine chlorate/chlorine replenishment分类
土木建筑引用本文复制引用
林朋飞,邵淑梅,王常海,孙国鹏,王涛,殷晓岚..小型次氯酸钠发生器在二次供水站补氯消毒中的应用[J].净水技术,2023,42(z2):24-29,6.
