水温对二次供水水箱水龄的影响  

Effect of Water Temperature on Water Age of Secondary Water Supply Tank

作　　者：陈礼洪 张舒婷 魏忠庆 裴义山 蒋柱武 白欢龙 CHEN Lihong;ZHANG Shuting;WEI Zhongqing;PEI Yishan;JIANG Zhuwu;BAI Huanlong(School of Ecological Environment and Urban Construction,Fujian University of Technology,350118;Fuzhou Water Affairs Investment And Development Co.,Ltd,350001:Fuzhou,China)

机构地区：[1]福建工程学院生态环境与城市建设学院,350118 [2]福州市水务投资发展有限公司,福建福州350001

出　　处：《水处理技术》2023年第1期98-102,共5页Technology of Water Treatment

基　　金：新型粒子电极电化学体系去除饮用水高致毒性N-DBPs的机制与调控(52070043);基于水龄管控的二次供水水质安全保障关键技术研发及示范(2022Y4018);福州市二次供水安全与节能关键技术研发及示范项目(GY-H-22194)。

摘　　要：水箱调蓄的二次供水普遍存在水中余氯衰减过量水质不达标情况,为减少水箱余氯无效衰减,控制二次供水水箱水龄,能保障水质安全。水温作为影响水箱水余氯衰减的重要因素,对二次供水水箱水龄也存在影响。为研究保障水质安全的二次供水水龄,课题通过可调控水温实验平台,模拟不同水温下水箱静态工况余氯衰减情况,探究水温对二次供水水箱水龄的影响。研究结果表明:水温对二次供水水箱水余氯衰减影响显著,水温较高时,余氯自分解在水箱水余氯衰减成因中占有较大比重;消耗相同余氯量时,28℃所需时间为10℃所需时间的三分之一;根据水温与二次供水水龄之间的关系,水温升高时,相应下降二次供水水龄,控制水箱余氯消耗不过量。The secondary water supply of water tank storage generally has insufficient residual chlorine in the water and the water quality is not up to standard.To reduce the decline of tank residual chlorine,control the secondary water supply tank water age,and protect the safety of water quality.As an important factor affecting the decline of residual chlorine in water tank,water temperature also has an impact on the water age of the secondary water supply tank.To study the water age of the secondary water supply to ensure the safety of water quality,the subject simulates the residual chlorine decline of the water tank under static conditions at different water temperatures through the adjustable water temperature experimental platform and explored the influence of water temperature on the water age of secondary water supply tank.The results showed that the water temperature has a significant impact on the residual chlorine decline of the secondary water supply tank.When the water temperature was high,the decomposition of residual chlorine accounts for a large proportion in the causes of the attenuation of residual chlorine in the water tank.When the same amount of residual chlorine was consumed,the time required at 28℃is one-third of the time required at 10℃.According to the relationship between the water temperature and the water age of the secondary water supply,when the water temperature was raised,the water age of the secondary water supply will be reduced accordingly,and the residual chlorine consumption of the water tank will not be excessive.

关 键 词：二次供水 水箱 余氯衰减 水龄 水温 

分 类 号：TU991.34[建筑科学—市政工程]