Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review
With the rapid economic development, the discharge of industrial wastewater and municipal wastewater containing many refractory organic pollutants is increasing, so there is an urgent need for processes that can treat refractory organics in wastewater. Iron-carbon micro electrolysis and advanced oxi...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2022-08-01
|
| Series: | Water Science and Technology |
| Subjects: | |
| Online Access: | http://wst.iwaponline.com/content/86/4/690 |
| _version_ | 1811209407580602368 |
|---|---|
| author | Yu Chen Yanjiao Gao Tingting Liu Zhao Zhang Weishi Li |
| author_facet | Yu Chen Yanjiao Gao Tingting Liu Zhao Zhang Weishi Li |
| author_sort | Yu Chen |
| collection | DOAJ |
| description | With the rapid economic development, the discharge of industrial wastewater and municipal wastewater containing many refractory organic pollutants is increasing, so there is an urgent need for processes that can treat refractory organics in wastewater. Iron-carbon micro electrolysis and advanced oxidation based on persulfate radicals (SO4−·) have received much attention in the field of organic wastewater treatment. Iron-carbon micro electrolysis activated persulfate (Fe-C/PS) treatment of wastewater is characterized by high oxidation efficiency and no secondary pollution. This paper reviews the mechanism and process of Fe-C/PS, degradation of organics in different wastewater, and the influencing factors. In addition, the degradation efficiency and optimal reaction conditions (oxidant concentration, catalyst concentration, iron-carbon material, and pH) of Fe-C/PS in the treatment of refractory organics in wastewater are summarized. Moreover, the important factors affecting the degradation of organics by Fe-C/PS are presented. Finally, we analyzed the challenges and the prospects for the future of Fe-C/PS in application, and concluded that the main future directions are to improve the degradation efficiency and cost by synthesizing stable and efficient catalysts, optimizing process parameters, and expanding the application scope.
HIGHLIGHTS
The mechanism of sulfate radical and iron-carbon micro electrolysis.;
Optimum reaction conditions and degradation efficiency of refractory organic compounds in different wastewater.;
The influence factors of activated persulfate by iron-carbon micro electrolysis.;
The existing problems and development direction of activated persulfate by iron-carbon micro electrolysis research.; |
| first_indexed | 2024-04-12T04:37:43Z |
| format | Article |
| id | doaj.art-45ec1266e6284e9abc3f0dc13b81e08a |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-04-12T04:37:43Z |
| publishDate | 2022-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-45ec1266e6284e9abc3f0dc13b81e08a2022-12-22T03:47:44ZengIWA PublishingWater Science and Technology0273-12231996-97322022-08-0186469071310.2166/wst.2022.254254Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a reviewYu Chen0Yanjiao Gao1Tingting Liu2Zhao Zhang3Weishi Li4 College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China Research Institute of Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China College of Civil Engineering and Architecture, Liaoning University of Technology, Jinzhou 121001, China Research Institute of Solid Waste, Chinese Research Academy of Environmental Sciences, Beijing 100012, China With the rapid economic development, the discharge of industrial wastewater and municipal wastewater containing many refractory organic pollutants is increasing, so there is an urgent need for processes that can treat refractory organics in wastewater. Iron-carbon micro electrolysis and advanced oxidation based on persulfate radicals (SO4−·) have received much attention in the field of organic wastewater treatment. Iron-carbon micro electrolysis activated persulfate (Fe-C/PS) treatment of wastewater is characterized by high oxidation efficiency and no secondary pollution. This paper reviews the mechanism and process of Fe-C/PS, degradation of organics in different wastewater, and the influencing factors. In addition, the degradation efficiency and optimal reaction conditions (oxidant concentration, catalyst concentration, iron-carbon material, and pH) of Fe-C/PS in the treatment of refractory organics in wastewater are summarized. Moreover, the important factors affecting the degradation of organics by Fe-C/PS are presented. Finally, we analyzed the challenges and the prospects for the future of Fe-C/PS in application, and concluded that the main future directions are to improve the degradation efficiency and cost by synthesizing stable and efficient catalysts, optimizing process parameters, and expanding the application scope. HIGHLIGHTS The mechanism of sulfate radical and iron-carbon micro electrolysis.; Optimum reaction conditions and degradation efficiency of refractory organic compounds in different wastewater.; The influence factors of activated persulfate by iron-carbon micro electrolysis.; The existing problems and development direction of activated persulfate by iron-carbon micro electrolysis research.;http://wst.iwaponline.com/content/86/4/690activated persulfatedegradationiron-carbon micro electrolysisrefractory organicssulfate radicalwastewater treatment |
| spellingShingle | Yu Chen Yanjiao Gao Tingting Liu Zhao Zhang Weishi Li Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review Water Science and Technology activated persulfate degradation iron-carbon micro electrolysis refractory organics sulfate radical wastewater treatment |
| title | Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review |
| title_full | Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review |
| title_fullStr | Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review |
| title_full_unstemmed | Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review |
| title_short | Activated persulfate by iron-carbon micro electrolysis used for refractory organics degradation in wastewater: a review |
| title_sort | activated persulfate by iron carbon micro electrolysis used for refractory organics degradation in wastewater a review |
| topic | activated persulfate degradation iron-carbon micro electrolysis refractory organics sulfate radical wastewater treatment |
| url | http://wst.iwaponline.com/content/86/4/690 |
| work_keys_str_mv | AT yuchen activatedpersulfatebyironcarbonmicroelectrolysisusedforrefractoryorganicsdegradationinwastewaterareview AT yanjiaogao activatedpersulfatebyironcarbonmicroelectrolysisusedforrefractoryorganicsdegradationinwastewaterareview AT tingtingliu activatedpersulfatebyironcarbonmicroelectrolysisusedforrefractoryorganicsdegradationinwastewaterareview AT zhaozhang activatedpersulfatebyironcarbonmicroelectrolysisusedforrefractoryorganicsdegradationinwastewaterareview AT weishili activatedpersulfatebyironcarbonmicroelectrolysisusedforrefractoryorganicsdegradationinwastewaterareview |