常规水处理工艺预氧化去除剑水蚤试验研究  

Removal of cyclops by preoxidation in conventional water treatment technology

作　　者：施爱华[1] 李润芳 苑晨 赵江丽 Shi Aihua;Li Runfang;Yuan Chen;Zhao Jiangli(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,天津300450

出　　处：《供水技术》2018年第5期34-36,共3页Water Technology

摘　　要：对比了次氯酸钠、氯胺和二氧化氯对剑水蚤的杀灭效果,并确定了最佳投加比例、投加顺序和投加量。结果表明:有效氯浓度为3. 0 mg/L,接触时间为1. 5 h时,在先氯后氨、氯氨比4∶1、投加间隔时间30 s的试验条件下投加氯胺,以及单独投加二氧化氯可完全去除剑水蚤,灭活效果优于单独投加次氯酸钠、其他氯氨比和先氨后氯的投加方式。The removal effects of sodium hypochlorite,chloramine and chlorine dioxide on cyclops were compared,and the optimum dosage ratio,sequence and dosage were determined. The results showed that cyclops could be completely removed adding 3. 0 mg/L available chlorine and 1. 5 h of exposure,by chloramine under the experimental conditions of chlorine before ammonia,4 ∶ 1 of chlorine to ammonia ratio,30 seconds interval,and individual chlorine dioxide. The inactivation effect was better than that of sodium hypochlorite,other chlorine-ammonia ratios and sequence.

关 键 词：剑水蚤 预氧化 二氧化氯 氯胺 灭活 

分 类 号：TU991.2[建筑科学—市政工程]