{"title":"Remediation of cadmium-contaminated soil using modified activated carbon fiber combined with electrodynamic remediation technology","authors":"Dao-lin Zhou, Yue Cheng, Yu-shan Wan","doi":"10.1007/s12210-024-01252-x","DOIUrl":null,"url":null,"abstract":"<p>In this study, modified activated carbon fibers and phytic acid-doped polyaniline/activated carbon fiber composites were successfully prepared by modifying activated carbon fibers and compounding polyaniline. The electrokinetic adsorption combined remediation technology was used to study the remediation of cadmium-contaminated soil. The results showed that when the electric field intensity was 2 V cm<sup>−1</sup> and the repair time was 120 h, 0.1 mol L<sup>−1</sup> citric acid solution was circularly added to the cathode using electrolyte. The current during the repair process showed periodic fluctuations with the extension of the repair time. The current of adding P-PANI/ACF adsorbent near the cathode region was larger than that of other groups, and cadmium has a higher removal rate. The mean removal rate of Cd(II) in soil with a content of 60 mg kg<sup>−1</sup> reach 76.94%.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":54501,"journal":{"name":"Rendiconti Lincei-Scienze Fisiche E Naturali","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rendiconti Lincei-Scienze Fisiche E Naturali","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1007/s12210-024-01252-x","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, modified activated carbon fibers and phytic acid-doped polyaniline/activated carbon fiber composites were successfully prepared by modifying activated carbon fibers and compounding polyaniline. The electrokinetic adsorption combined remediation technology was used to study the remediation of cadmium-contaminated soil. The results showed that when the electric field intensity was 2 V cm−1 and the repair time was 120 h, 0.1 mol L−1 citric acid solution was circularly added to the cathode using electrolyte. The current during the repair process showed periodic fluctuations with the extension of the repair time. The current of adding P-PANI/ACF adsorbent near the cathode region was larger than that of other groups, and cadmium has a higher removal rate. The mean removal rate of Cd(II) in soil with a content of 60 mg kg−1 reach 76.94%.
期刊介绍：
Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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