Zaoquan Huang, Xiaoyuan Li, Siying Hou, Yanjie Zhao, Haijian Lu, Jun Wang, Yirong Deng
{"title":"Surfactant Enhancement in Degradation of Phenanthrene Contaminated Soil by Sodium Persulfate.","authors":"Zaoquan Huang, Xiaoyuan Li, Siying Hou, Yanjie Zhao, Haijian Lu, Jun Wang, Yirong Deng","doi":"10.1007/s00128-025-04015-y","DOIUrl":null,"url":null,"abstract":"<p><p>To enhance phenanthrene degradation in soil, the effects of four surfactants on the thermal activation of sodium persulfate (SPS) were investigated. Sodium dodecyl diphenyl ether disulfonate (C<sub>12</sub>-MADS) was found to stabilize SPS by reducing the generation of sulfate radicals from its thermal decomposition. Optimal conditions for the surfactant-assisted persulfate system were determined to be 5 g/L of C<sub>12</sub>-MADS at a temperature of 60°C, achieving an 89.80% removal efficiency of phenanthrene in soil. The presence of OH<sup>-</sup> increased the system pH and decreased the removal efficiency. These results demonstrate that C<sub>12</sub>-MADS significantly enhanced the oxidation of phenanthrene and improves SPS utilization efficiency, contributing to the development of an effective surfactant-assisted persulfate system for soil decontamination.</p>","PeriodicalId":501,"journal":{"name":"Bulletin of Environmental Contamination and Toxicology","volume":"114 3","pages":"33"},"PeriodicalIF":2.2000,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Environmental Contamination and Toxicology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s00128-025-04015-y","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
To enhance phenanthrene degradation in soil, the effects of four surfactants on the thermal activation of sodium persulfate (SPS) were investigated. Sodium dodecyl diphenyl ether disulfonate (C12-MADS) was found to stabilize SPS by reducing the generation of sulfate radicals from its thermal decomposition. Optimal conditions for the surfactant-assisted persulfate system were determined to be 5 g/L of C12-MADS at a temperature of 60°C, achieving an 89.80% removal efficiency of phenanthrene in soil. The presence of OH- increased the system pH and decreased the removal efficiency. These results demonstrate that C12-MADS significantly enhanced the oxidation of phenanthrene and improves SPS utilization efficiency, contributing to the development of an effective surfactant-assisted persulfate system for soil decontamination.
期刊介绍：
The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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