Formation of Bromate in UV/Cl2, UV/NH2Cl and UV/ClO2 Combining Processes

HUANG Xin; GAO Nai-yun; DING Guo-ji; LU Ning

doi:10.11835/j.issn.1674-4764.2010.06.023

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Formation of Bromate in UV/Cl2, UV/NH2Cl and UV/ClO2 Combining Processes

更新时间：2023-11-28

- Formation of Bromate in UV/Cl2, UV/NH2Cl and UV/ClO2 Combining Processes
- Journal of Civil and Environmental Engineering Vol. 32, Issue 6, Pages: 132-136(2010)
- 作者机构：
  
  1. 上海大学环境与化学工程学院环境工程系,上海,200444
  2. 同济大学污染控制与资源化研究国家重点试验室,上海,200092
  3. 上海城市水资源开发利用国家工程中心有限公司,上海,200082
- 作者简介：
- 基金信息：
- DOI：10.11835/j.issn.1674-4764.2010.06.023
  CLC：
- Published：2010
- 稿件说明：
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HUANG Xin, GAO Nai-yun, DING Guo-ji, et al. Formation of Bromate in UV/Cl2, UV/NH2Cl and UV/ClO2 Combining Processes[J]. Journal of Civil and Environmental Engineering, 2010, 32(6): 132-136.
DOI：

HUANG Xin, GAO Nai-yun, DING Guo-ji, et al. Formation of Bromate in UV/Cl2, UV/NH2Cl and UV/ClO2 Combining Processes[J]. Journal of Civil and Environmental Engineering, 2010, 32(6): 132-136. DOI： 10.11835/j.issn.1674-4764.2010.06.023.

摘要

以H2O-Br--Cl2/NH2Cl/ClO2为研究对象，考查UV作用下BrO3-产生的情况。结果表明：原水和去离子水背景下，Cl2/UVC联用可以氧化部分的Br-生成BrO3-；NH3可以有效的抑制BrO3-生成，并且NH2Cl/UVC作用时不生成BrO3-；ClO2/UV体系产生溴酸根能力明显弱于Cl2/UV；ClO2/UVC产生BrO3-的量高于ClO2/UVA。酸性条件同时促进BrO3-的产生和ClO2的分解，碱性条件正好相反。

Abstract

The effect of UV irradiation on bromate (BrO3-) formation is investigated in H2O-Br--Cl2/NH2Cl/ClO2 systems. It is found that partial bromide ion was oxidized to BrO3- by Cl2/UVC. NH3 can inhibit the forming of bromate effectively

and no production of bromate is observed by NH2Cl/UVC. The bromate formation capability of ClO2/UV system is weaker than that of the Cl2/UV. Furthermore

the amount of bromate produced in ClO2/UVC is larger than that in ClO2/UVA. Both the formation of bromate and the decomposition of chlorine dioxide are improved in acidic conditions

whereas alkaline conditions lead to reverse effects.

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