次氯酸钠预加氯对混凝效果的影响  

Study on the effect of pre-chlorination with sodium hypochlorite on coagulation

作　　者：张爽 管士莹 孙妍 Zhang Shuang;Guan Shiying;Sun Yan(Tianjin Tanggu Sino-French Water Supply Co.Ltd.,Tianjin 300450,China)

机构地区：[1]天津塘沽中法供水有限公司

出　　处：《供水技术》2019年第2期23-24,共2页Water Technology

摘　　要：以采用常规水处理工艺的天津某水厂为对象,通过烧杯混凝试验,研究了预加氯量、消毒剂与混凝剂投加时间间隔对混凝沉淀反应效果的影响。结果表明:随着预加氯量的增加和投加间隔的延长,出水浊度降低,混凝效果明显改善。在预加氯量为1.5 mg/L,投加时间间隔为10 min时,混凝沉淀效果最佳。Taking a waterworks with conventional water treatment process in Tianjin as a case,the effects of pre-chlorine dosage,time interval between disinfectant and coagulant dosage,and coagulation sedimentation reflection effect were investigated through beaker coagulation tests.The results showed that the turbidity of effluent decreased effectively with the increase of pre-chlorination and the prolongation of the time interval between pre-chlorination and coagulant dosage,and the coagulation reflection effect was improved obviously.When the pre-chlorine dosage was 1.5 mg/L and the time interval was 10 minutes,the optimal coagulation sedimentation reaction effect was achieve.

关 键 词：预氯化 混凝沉淀 去除率 

分 类 号：TU991.22[建筑科学—市政工程]