Sulfite activation technology and its application in wastewater treatment

被引：0

作者：

Jia Y. ^{[1
]}

Xue D. ^{[1
]}

Liu Q. ^{[1
]}

Zhang H. ^{[1
]}

Li Z. ^{[1
]}

Zhang L. ^{[1
]}

机构：

[1] School of Chemical Engineering, Northeast Electric Power University, Jilin

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 01期

关键词：

Activation; Oxidation; Radical; Sulfite; Transition metal; Wastewater;

D O I：

10.16085/j.issn.1000-6613.2021-0340

中图分类号：

学科分类号：

摘要：

As a by-product of desulfurization, sulfite has the advantages of low price, low toxicity and simple preparation. It can be activated to produce sulfate radicals (SO•-4), sulfite free radicals (SO•-3), peroxysulfate radicals (SOSO•-5), hydroxyl radicals (OH•) and many other active substances with high oxidation potential to oxidize and degrade various organic pollutants quickly and efficiently. Therefore, sulfite is regarded as a more economical and environmentally friendly alternative to persulfate. This article reviews the research progress of sulfite activation technology, including transition metal ion activation, ultraviolet light radiation activation and oxygen-containing metal acid salt activation, etc.. The mechanism of sulfite activation such as the radical chain reaction of transition metal activated sulfite and the formation of free radicals by ultraviolet radiation sulfite photolysis is introduced in detail. The research status of sulfite advanced oxidation process for the treatment of various organic wastewater is summarized. At present, this technology has significant effects in the treatment of a variety of refractory wastewater, but most of the research is still at the experimental stage and the treatment object is single. There is little research on actual wastewater treatment. © 2022, Chemical Industry Press Co., Ltd. All right reserved.

引用

页码：418 / 426

页数：8

共 46 条

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