| 二氧化氯应用于水箱二次供水安全消毒研究 |
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| 引用本文： | 张积洋,吴纯德,王林,陈露,胡勇有. 二氧化氯应用于水箱二次供水安全消毒研究[J]. 水处理技术, 2012, 38(9): 83-87 |
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| 作者姓名： | 张积洋 吴纯德 王林 陈露 胡勇有 |
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| 作者单位： | 1. 华南理工大学环境科学与工程学院 广东广州510006
2. 华南理工大学环境科学与工程学院 广东广州510006;工业聚集区污染控制与生态修复教育部重点实验室 广东广州510006;污染控制与生态修复广东省普通高校重点实验室 广东广州510006 |
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| 基金项目： | 国家水体污染控制与治理重大专项资助 |
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| 摘 要： | 采用消毒剂二氧化氯(ClO2)进行二次供水水质消毒试验研究,考察了ClO2投加量、氨氮、CODMn和pH对ClO2的衰减及氯酸盐和亚氯酸盐消毒副产物生成的影响,并建立了氯酸盐(ClO3-)和亚氯酸盐(ClO2-)生成质量浓度的预测经验模型。结果表明,当原水CODMn<4.20 mg/L、氨氮的质量浓度<0.582 mg/L、pH在6.5～8.5、水中投加0.05mg/L的ClO2、HRT为48 h时,一定的液位降泵启动,消毒副产物在监测12 h内不超过GB 5749-2006的规定,并在水箱中基本检测不到微生物的存在。相同条件下,若ClO2投加量大于0.70 mg/L时,消毒副产物则可能超标。
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| 关 键 词： | 二氧化氯 二次供水 氯酸盐 亚氯酸盐 消毒副产物 |
STUDY ON THE APPLICATION OF CHLORINE DIOXIDE FOR THE SAFETY DISINFECTION OF SECONDARY WATER SUPPLY |
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| Zhang Jiyang , Wu Chunde , Wang Lin , Chen Lu , Hu Yongyou. STUDY ON THE APPLICATION OF CHLORINE DIOXIDE FOR THE SAFETY DISINFECTION OF SECONDARY WATER SUPPLY[J]. Technology of Water Treatment, 2012, 38(9): 83-87 |
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| Authors: | Zhang Jiyang Wu Chunde Wang Lin Chen Lu Hu Yongyou |
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| Affiliation: | 1,2,3(1.School of Environmental Science and Engineering,South China University of Technology;2.The Key Lab of Pollution Control and Ecosystem Restoration in Indus try Clusters,Ministry of Education;3.The Key Lab of Pollution Control and Ecosystem Restoration,Education Department of Guangdong Province: Guangzhou 510006,China) |
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| Abstract: | Chlorine dioxide(ClO2) was adopted as a disinfectant for a secondary water supply.Under experimental conditions,the effects of ClO2dosage,NH3-N and CODMnconcentrations,and pH on the attenuation of ClO2and the formation of chlorate(ClO3-) and chlorite(ClO2-) were investigated,and the predictive models for the produced ClO3-and ClO2-concentrations were developed.The results of the test showed that: when CODMn<4.20 mg/L,ammonia concentration <0.582 mg/L and pH was 6.5~8.5 in the raw water,dosing of ClO2was 0.05 mg/L,hydraulic retention time was 48 h,the starting of pumps in some certain liquid level drop,disinfection by-products did not exceed the provisions of GB 5749-2006 during monitoring 12 h and microorganisms were basically not monitored.Under the same condition,the disinfection by-products was maybe more than the standard level if the dosing of ClO2was over 0.7 mg/L. |
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| Keywords: | chlorine dioxide secondary water supply chlorate chlorite disinfection by-products |
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