Advanced oxidation process based on hydroxyl and sulfate radicals to degrade refractory organic pollutants in landfill leachate

Shuo Li, Yalun Yang, Heshan Zheng, Yongjie Zheng, Tao Jing, Jun Ma, Jun Nan, Yoong Kit Leong, Jo Shu Chang

研究成果: Review article同行評審

1 引文 斯高帕斯(Scopus)

摘要

As a special type of wastewater produced in the landfill, leachate is mainly composed of organic pollutants, inorganic salts, ammonia nitrogen and heavy metals, and featured by high pollutants concentration, complex composition and large fluctuations in water quality and volume. Biological, chemical and physical methods have been proposed to treat landfill leachate, but much attention has been paid to the advanced oxidation processes (AOPs), due to their high adaptability and organic degradation efficiency. This paper summarizes the recent findings on the AOPs based on hydroxyl radical ([rad]OH) (e.g., ozonation and catalyzed ozone oxidations, Fenton and Fenton-like oxidations) and sulfate radical (SO4[rad]) (e.g., activated and catalyzed persulfate oxidations), especially the production routes of free radicals and mechanisms of action. When dealing with some special landfill leachates, it is difficult for a single advanced oxidation technology to achieve the expected results, but the synergistic combination with biological or physical methods can produce satisfactory outcomes. Therefore, this paper has summarized the application of these combined treatment technologies on landfill leachate.

原文English
文章編號134214
期刊Chemosphere
297
DOIs
出版狀態Published - 2022 6月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 化學 (全部)
  • 環境化學
  • 污染
  • 公共衛生、環境和職業健康
  • 健康、毒理學和誘變

指紋

深入研究「Advanced oxidation process based on hydroxyl and sulfate radicals to degrade refractory organic pollutants in landfill leachate」主題。共同形成了獨特的指紋。

引用此