LI Lei,WANG Bo,ZHANG Miao,et al.Pilot Test on Bromate Formation Inhibition by O3/H2O2 Advanced Oxidation Technology[J].China Water & Wastewater,2021,37(13 13):60-64.
Pilot Test on Bromate Formation Inhibition by O3/H2O2 Advanced Oxidation Technology
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
13 13
Page:
60-64
Column:
Date of publication:
2021-07-01
- Keywords:
- advanced oxidation; ozone; H2O2; bromate
- Abstract:
- A pilot test of O3/H2O2 and biological activated carbon(BAC) combined process was carried out. The ability of the combined process to control bromate generation was analyzed, and target pollutants removal (such as nitrobenzene, UV254 and CODMn) by the combined process was investigated. Effect of O3/H2O2-BAC combined process on bromate control and removal was obviously better than that of conventional O3-BAC combined process. Under the same ozone dosage, adding a small amount of H2O2 could obviously control and remove bromate. In terms of removing the target pollutant nitrobenzene, adding H2O2 could obviously improve the nitrobenzene removal efficiency compared with adding ozone only. When ozone and H2O2 dosages were 2.0 mg/L and 0.2 mg/L, the removal efficiency of nitrobenzene in the O3/H2O2 unit was still slightly higher than that of adding 2.5 mg/L ozone alone, which reduced the operational cost of the waterworks.
Last Update:
2021-07-01