Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste
Spent carbon anode (SCA) is a dangerous solid waste that is continuously discharged from the aluminum electrolysis industry and has a large number of valuable resources and a high risk of environmental pollution. Its safe disposal and resource utilization have become a resource and environmental pro...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2021-11-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2021.779476/full |
| _version_ | 1818689036205686784 |
|---|---|
| author | Bin Li Jun Zhou Jun Zhou Zhen Yao Zhen Yao Qian Peng Qian Peng Mengnan Liu Xiaoqing Li Wei Liu Wei Liu |
| author_facet | Bin Li Jun Zhou Jun Zhou Zhen Yao Zhen Yao Qian Peng Qian Peng Mengnan Liu Xiaoqing Li Wei Liu Wei Liu |
| author_sort | Bin Li |
| collection | DOAJ |
| description | Spent carbon anode (SCA) is a dangerous solid waste that is continuously discharged from the aluminum electrolysis industry and has a large number of valuable resources and a high risk of environmental pollution. Its safe disposal and resource utilization have become a resource and environmental problem that must be solved urgently. Current methods for SCA disposal include flotation, vacuum metallurgy, physical activation, roasting, bubbling fluidized bed combustion, alkali fusion, alkali leaching, and chemical leaching combined with high temperature graphitization. In this paper, the material composition, resource properties, and environmental risks of SCA are discussed. Working principle, treatment process, advantages and disadvantages of the above methods are also briefly described and compared. Results showed that flotation is the safest disposal and comprehensive utilization technology that is suitable for characteristics of SCA raw materials and has the most large-scale application potential. In addition, characteristics of SCA recovery products are correlated to the recycling of aluminum reduction cells. This technology can alleviate the shortage of high-quality petroleum coke resources in China’s carbon material industry and the high cost of raw materials in aluminum electrolysis industry. |
| first_indexed | 2024-12-17T12:03:43Z |
| format | Article |
| id | doaj.art-dbbe0639048148dcaa80c60e177242f5 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-17T12:03:43Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-dbbe0639048148dcaa80c60e177242f52022-12-21T21:49:44ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-11-01910.3389/fenrg.2021.779476779476Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous WasteBin Li0Jun Zhou1Jun Zhou2Zhen Yao3Zhen Yao4Qian Peng5Qian Peng6Mengnan Liu7Xiaoqing Li8Wei Liu9Wei Liu10School of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaGuizhou Engineering Research Center for Carbon Materials of Aluminum Electrolysis, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaGuizhou Engineering Research Center for Carbon Materials of Aluminum Electrolysis, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaGuizhou Engineering Research Center for Carbon Materials of Aluminum Electrolysis, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaSchool of Materials and Architectural Engineering, Guizhou Normal University, Guiyang, ChinaGuizhou Engineering Research Center for Carbon Materials of Aluminum Electrolysis, Guiyang, ChinaSpent carbon anode (SCA) is a dangerous solid waste that is continuously discharged from the aluminum electrolysis industry and has a large number of valuable resources and a high risk of environmental pollution. Its safe disposal and resource utilization have become a resource and environmental problem that must be solved urgently. Current methods for SCA disposal include flotation, vacuum metallurgy, physical activation, roasting, bubbling fluidized bed combustion, alkali fusion, alkali leaching, and chemical leaching combined with high temperature graphitization. In this paper, the material composition, resource properties, and environmental risks of SCA are discussed. Working principle, treatment process, advantages and disadvantages of the above methods are also briefly described and compared. Results showed that flotation is the safest disposal and comprehensive utilization technology that is suitable for characteristics of SCA raw materials and has the most large-scale application potential. In addition, characteristics of SCA recovery products are correlated to the recycling of aluminum reduction cells. This technology can alleviate the shortage of high-quality petroleum coke resources in China’s carbon material industry and the high cost of raw materials in aluminum electrolysis industry.https://www.frontiersin.org/articles/10.3389/fenrg.2021.779476/fullaluminum electrolysishazardous wastespent carbon anodesafe disposalcomprehensive utilization |
| spellingShingle | Bin Li Jun Zhou Jun Zhou Zhen Yao Zhen Yao Qian Peng Qian Peng Mengnan Liu Xiaoqing Li Wei Liu Wei Liu Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste Frontiers in Energy Research aluminum electrolysis hazardous waste spent carbon anode safe disposal comprehensive utilization |
| title | Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste |
| title_full | Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste |
| title_fullStr | Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste |
| title_full_unstemmed | Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste |
| title_short | Advances in the Safe Disposal and Comprehensive Utilization of Spent Carbon Anode From Aluminum Electrolysis: Prospects for Extraction and Application of Carbon Resources From Hazardous Waste |
| title_sort | advances in the safe disposal and comprehensive utilization of spent carbon anode from aluminum electrolysis prospects for extraction and application of carbon resources from hazardous waste |
| topic | aluminum electrolysis hazardous waste spent carbon anode safe disposal comprehensive utilization |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2021.779476/full |
| work_keys_str_mv | AT binli advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT junzhou advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT junzhou advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT zhenyao advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT zhenyao advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT qianpeng advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT qianpeng advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT mengnanliu advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT xiaoqingli advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT weiliu advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste AT weiliu advancesinthesafedisposalandcomprehensiveutilizationofspentcarbonanodefromaluminumelectrolysisprospectsforextractionandapplicationofcarbonresourcesfromhazardouswaste |