Abstract
In recent years, electrokinetic (EK) remediation technology has gained significant attention among researchers. This technology has proven effective in the remediation of low-permeability polluted soil. Organochlorines (OCs) are highly toxic, persistent, bioaccumulative, and capable of long-distance migration. They can also accumulate through the food chain, posing significant environmental risks. This paper provides a review of the reaction mechanism of combining chemical technology with EK remediation for the removal of several typical OCs. Furthermore, the factors influencing the efficiency of EK remediation, such as pH and ζ potential, voltage gradients, electrode materials, electrolytes, electrode arrangements, and soil types, are summarized. The paper also presents an overview of recent advancements in the methods of combining chemical technology with EK remediation for the treatment of OCs contaminated soil. Specifically, the research progress in surfactants-combined EK technology, chemical oxidation-combined EK technology, chemical reduction-combined EK technology, and chemical adsorption-combined EK technology is summarized. These findings serve as a foundation for ongoing and future research endeavors in the field. Further exploration and investigation in this area are essential for advancing the field and improving environmental remediation strategies.
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This work was supported by Natural Science Foundation of Shanxi Province (201801D121267).
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YY: writing, formal analysis, conceptualization, investigation. FZ: investigation, review and editing, project administration, and supervision.
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Yang, Y., Zhu, F. An overview of electrokinetically enhanced chemistry technologies for organochlorine compounds (OCs) remediation from soil. Environ Sci Pollut Res 31, 529–548 (2024). https://doi.org/10.1007/s11356-023-31183-3
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DOI: https://doi.org/10.1007/s11356-023-31183-3