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):60-64.
O3/H2O2高级氧化技术抑制溴酸盐生成中试
- Title:
- Pilot Test on Bromate Formation Inhibition by O3/H2O2 Advanced Oxidation Technology
- Keywords:
- advanced oxidation; ozone; H2O2; bromate
- 摘要:
- 采用O3/H2O2—生物活性炭(BAC)组合工艺进行中试，分析该组合工艺控制溴酸盐生成的能力，同时考察组合工艺去除目标污染物硝基苯、UV254、CODMn的情况。实验结果表明，O3/H2O2—BAC组合工艺控制和去除溴酸盐的效果明显优于常规O3—BAC联用工艺。在相同臭氧投加量条件下，投加少量的H2O2即可明显控制及去除溴酸盐。在去除目标污染物硝基苯方面，与仅投加O3相比，加投H2O2能够明显提高硝基苯去除率，当臭氧投加量为2.0 mg/L、H2O2投加量为0.2 mg/L时，O3/H2O2单元对硝基苯的去除率仍然略高于单独投加2.5 mg/L臭氧的，降低了给水厂的运行成本。
- 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.
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