水龄对不锈钢水箱内水质的影响  

Effect of Water Age on Water Quality in Stainless Steel Water Tank

作　　者：陈燕 宋玉晶 CHEN Yan;SONG Yujing(Hangzhou Xiaoshan Water Supply Co.,Ltd.,Hangzhou 311201,China)

机构地区：[1]杭州萧山供水有限公司,浙江杭州311201

出　　处：《净水技术》2021年第S01期298-302,共5页Water Purification Technology

摘　　要：为考察二次供水设施中水箱对水质的影响,对某水司接管的水箱进行水质摸底调查。选择两个小区,通过关停同一小区两个水箱的其中一个水箱,考察金属、有机物、消赤剂、感官性状指标和微生物指标的变化情况。铁、铝、锌含量在前4 d略有上升,到第11 d后保持较稳定的状态;有机物和感官性状指标无较大波动;余氯在前2d基本无衰减,到第11 d,两个水箱余氯分别衰减了67%和50%;两个小区的水箱分别在第3d和第11 d开始有细菌检出,但仍未超标。两只水箱在停用11 d后,水质较稳定。In order to investigate the impact of water tank on water quality,water quality of the water tank taken over by the com-pany was investigated.In addition,by shutting down one of the two water tanks in the same district,the changes of metal,organic matter,disinfectant,sensory parameter and microbial parameter were investigated.The contents of aluminum and zine in metal param-eters increased slightly in the first four days,and remained stable after the eleventh day.There was no significant fluctuation in or-ganic matter parameter and sensory paraneter.Residual chlorine did not decay in the first two days.On the eleventh day,the residual chlorine in two water tanks decreased by 67%and 50%respectively.Bacteria were detected in the water tanks of the two communi-ties on the third day and the eleventh day respectively,but they still did not exceed the standard.In a word,the water quality of the two water tanks was stable after 11 days.

关 键 词：水箱 水龄 水质变化 二次供水设施 

分 类 号：TU991.34[建筑科学—市政工程]