您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

The formation and control of ozonation by-products during drinking water advanced treatment in a pilot-scale study

文献类型： 外文期刊

作者： Wang, Yongjing 1 ; Wang, Songtao 1 ; Li, Jinglin 3 ; Yan, Xinyu 1 ; Li, Cheng 4 ; Zhang, Minglu 1 ; Yu, Jianwei 2 ; Ren, Lianhai 1 ;

作者机构： 1.Beijing Technol & Business Univ, State Environm Protect Key Lab Food Chain Pollut, Beijing 100048, Peoples R China

2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China

3.China IPPR Int Engn Co Ltd, Beijing 100089, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Agr Stand & Testing, Beijing 100097, Peoples R China

5.Univ Chinese Acad Sci, Beijing 100019, Peoples R China

关键词： Ozone-biological activated carbon (O-4-BAC); Drinking water; Animate; Aldehydes; Hydrogen peroxide (H2O2)

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）

ISSN： 0048-9697

年卷期： 2022 年 808 卷

页码：

收录情况： SCI

摘要： Ozone has been widely applied during drinldng water treatment for organic pollutants removal, however, the ozonation by-products such as bromate, aldehydes, and carboxylic acids could be produced. To investigate the ozonation byproducts formation and control efficiency, a continuous pilot-scale system was established including conventional treatment and ozone-biological activated carbon (O-3-BAC) treatment processes in a waterworks that receives bromide-bearing source water from the Yellow River in northern China. It was found that ozonation could reduce the threshold odour number and the haloacetic acids formation potential effectively. As 1.8-2.6 mg/L of ozone was applied, the bromate concentration would exceed the standard of 10 mu g/L. Simultaneously, ozonation led to a large number of formaldehyde, methylglyoxal and other aldehydes. At the ozone dosage of 3.0 mg/L, the total concentration of aldehydes reached the highest of 45.4 mu g/L. Ammonia and hydrogen peroxide (H2O2) addition could inhibit the formation of bromate effectively. The application of H2O2 induced an increase in aldehydes concentration reaching a maximum concentration of 57.6 mu g/L. During the BAC treatment, the removal rate of aldehydes would reach 19%-41%. The addition of H2O2 inhibited the formation of bromate but increased the production of aldehydes, thus it is important to search a balance point for controlling bromate and aldehydes simultaneously. The H2O2/O-3 (g/g) of 1.0 could be possible to control both bromate and aldehydes concentrations within the standards.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台