Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime
The treatment of heavy metal-contaminated soil has been a difficult problem for many years. In order to repair heavy metal-contaminated sites with high efficiency, convenience, and low cost, solid wastes red mud and fly ash were used as main curing agents to repair Cu2+-contaminated kaolin. Electroc...
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| Format: | Article |
| Language: | English |
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Editorial Office of Journal of Taiyuan University of Technology
2021-03-01
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| Series: | Taiyuan Ligong Daxue xuebao |
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| Online Access: | https://tyutjournal.tyut.edu.cn/englishpaper/show-141.html |
| _version_ | 1797216730295042048 |
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| author | Bin HE Yan LIU Longhai TANG Xiaorui LIANG Du LI Weipeng LIANG |
| author_facet | Bin HE Yan LIU Longhai TANG Xiaorui LIANG Du LI Weipeng LIANG |
| author_sort | Bin HE |
| collection | DOAJ |
| description | The treatment of heavy metal-contaminated soil has been a difficult problem for many years. In order to repair heavy metal-contaminated sites with high efficiency, convenience, and low cost, solid wastes red mud and fly ash were used as main curing agents to repair Cu2+-contaminated kaolin. Electrochemical impedance spectroscopy, unconfined compressive strength, and leaching toxicity measurement were carried out. The experimental results show that when the ratio of red mud to fly ash was 7∶3, the solidification effect of Cu2+ in contaminated soil was the best, and all test indexes complied with the national standards. Moreover, Electrochemical impedance spectroscopy was proved to be a convenient, accurate, and non-destructive method for evaluating solidification effect. Through this solidification method, the remediation cost can be reduced, and the principle of solid waste reuse car be met. The method is suitable for the remediation of heavy metal-contaminated sites. |
| first_indexed | 2024-04-24T11:50:36Z |
| format | Article |
| id | doaj.art-d23438eae07644fdb5dc2e6e56cd3307 |
| institution | Directory Open Access Journal |
| issn | 1007-9432 |
| language | English |
| last_indexed | 2024-04-24T11:50:36Z |
| publishDate | 2021-03-01 |
| publisher | Editorial Office of Journal of Taiyuan University of Technology |
| record_format | Article |
| series | Taiyuan Ligong Daxue xuebao |
| spelling | doaj.art-d23438eae07644fdb5dc2e6e56cd33072024-04-09T08:03:57ZengEditorial Office of Journal of Taiyuan University of TechnologyTaiyuan Ligong Daxue xuebao1007-94322021-03-0152223824610.16355/j.cnki.issn1007-9432tyut.2021.02.0111007-9432(2021)02-0238-09Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash LimeBin HE0Yan LIU1Longhai TANG2Xiaorui LIANG3Du LI4Weipeng LIANG5College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaThe treatment of heavy metal-contaminated soil has been a difficult problem for many years. In order to repair heavy metal-contaminated sites with high efficiency, convenience, and low cost, solid wastes red mud and fly ash were used as main curing agents to repair Cu2+-contaminated kaolin. Electrochemical impedance spectroscopy, unconfined compressive strength, and leaching toxicity measurement were carried out. The experimental results show that when the ratio of red mud to fly ash was 7∶3, the solidification effect of Cu2+ in contaminated soil was the best, and all test indexes complied with the national standards. Moreover, Electrochemical impedance spectroscopy was proved to be a convenient, accurate, and non-destructive method for evaluating solidification effect. Through this solidification method, the remediation cost can be reduced, and the principle of solid waste reuse car be met. The method is suitable for the remediation of heavy metal-contaminated sites.https://tyutjournal.tyut.edu.cn/englishpaper/show-141.htmlheavy metal contaminated soilsolidificationred mudfly ashelectrochemical impedance spectroscopy |
| spellingShingle | Bin HE Yan LIU Longhai TANG Xiaorui LIANG Du LI Weipeng LIANG Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime Taiyuan Ligong Daxue xuebao heavy metal contaminated soil solidification red mud fly ash electrochemical impedance spectroscopy |
| title | Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime |
| title_full | Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime |
| title_fullStr | Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime |
| title_full_unstemmed | Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime |
| title_short | Mechanical and Electrochemical Properties of Cu2+-Contaminated Kaolin Solidified by Red Mud-Fly-Ash Lime |
| title_sort | mechanical and electrochemical properties of cu2 contaminated kaolin solidified by red mud fly ash lime |
| topic | heavy metal contaminated soil solidification red mud fly ash electrochemical impedance spectroscopy |
| url | https://tyutjournal.tyut.edu.cn/englishpaper/show-141.html |
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