臭氧多相催化氧化技术在水厂深度处理中的应用

通过生产性对比试验考察了臭氧催化氧化技术用于给水深度处理时对有机物的去除效能.结果表明,相对于单纯的臭氧氧化,臭氧催化氧化明显地提高了对TOC及微量有机物的去除率,并使水中的剩余臭氧浓度降低了0.2 mg/L,有效地抑制了溴酸盐的生成.该技术可明显降低后续处理工艺的污染物负荷,并使有机物在活性炭上的吸附性能提高了近一倍,与生物活性炭联用后,对有机物的综合去除能力提高了14%～24%.臭氧催化氧化及其联用技术在兼顾有机物去除与臭氧化副产物控制方面具有明显的优势.

Application of Catalytic Ozonation Technology to Advanced Treatment in Waterworks

The removal efficiency of organics by catalytic ozonation technology for advanced treatment of micropolluted water was investigated by means of productive comparison test. The results show that compared with single ozonation, the catalytic ozonation obviously enhances the removal of TOC and micropollutants, decreases the average residual ozone concentration by 0.2 mg/L, which reduces the potential of bromate formation. This technology can effectively reduce the pollutant load for subsequent treatment processes, and improves the adsorption of organics on activated carbon by 100%. After combining the catalytic ozonation process with the biological activated carbon treatment, the organic removal efficiency is increased by 14% to 24%. Therefore, the catalytic ozonation and its combined processes can be beneficial for either improving organic pollutants removal or controlling the formation of oxidation byproducts.