Simulated study on electrochemical regeneration of ammonium persulfate for naphthalene degradation in soil
International Journal of Environmental Science and Technology(2024)
Abstract
Persulfate-based advanced oxidation processes (PS-AOPs) have emerged as a highly promising approach for remediating organic-contaminated soil. However, the substantial cost associated with the large injection volume of persulfate and the potential ecological risks arising from sulfate accumulation in the post-remediated soil have hindered the widespread application of this technology. To address these challenges, this study proposed a novel and environmental-friendly approach based on the reversible regeneration of ammonium persulfate (APS) through electrochemical synthesis, with the aim of realizing cyclic utilization of APS. Through our in-depth investigation, we have scrutinized the performance and kinetic behaviors of Fe2+-APS in the remediation of organic-contaminated soil, utilizing NAP as the target. By identifying the decisive factors for electrochemical regeneration of APS, we have also unraveled the underlying mechanisms governing the electrochemical synthesis of APS. Experimental results demonstrate an impressive degradation rate of 76.39
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Key words
Soil remediation,Naphthalene,Fe2+ activation,Kinetic simulation,Electrochemical regeneration of ammonium persulfate
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