A novel advanced oxidation technology based on activated persulfate

作者：Yang Shiying^*; Chen Youyuan; Xu Huizhen; Wang Ping; Liu Yuhong; Wang Maodong

来源：Progress in Chemistry, 2008, 20(9): 1433-1438.

• activated persulfate
• sulfate radical
• advanced oxidation technology
• soil and groundwater remediation
• organic pollutants

The thermal, photochemical or metal ions activated decomposition of persulfate anions (S2O82-) produces a powerful oxidant known as the sulfate free radical (center dot S0(4)(-)) which can potentially destroy organic compounds. Activated persulfate oxidation chemistry is an emerging advanced oxidation technology (AOT) for organic pollutants degradation. This paper, for the first time, provides an up-to-date overview of application of the novel technology in not only soil and groundwater remediation, but also wastewater treatment. S2O82- is a relatively new form of in situ chemical oxidation (ISCO) oxidant that has mainly been investigated at bench-scale. However, the technology has developed rapidly due to the considerable research and applied use of this oxidant at an increasing number of field sites. As for wastewater treatment, S2O82- is mostly used as an electron-trapping agent to suppress hole-electron recombination in the TiO2, photocatalytic system, and only a very few reports have discussed organic pollutants direct-degradation by activated persulfate oxidation. The prospects of activated persulfate oxidation technology are also discussed.

• 出版日期2008-9
• 单位中国海洋大学