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FERRATE(VI) BASED CHEMICAL OXIDATION FOR THE REMEDIATION OF AGED PCB CONTAMINATED SOIL: COMPARISON WITH CONVENTIONAL OXIDANTS AND STUDY OF LIMITING FACTORS
Monfort, O., M. Usman, I. Soutrel, and K. Hanna.
Chemical Engineering Journal 355:109-117(2019)

This study tested the efficiency of ferrate(VI) (FeVI) to degrade PCBs in contaminated soil under various experimental conditions. Integrating Fe(VI) and conventional oxidants improved degradation efficiency, which was highest (40% removal) using Fe(VI)/HSO5-. To evaluate if soil factors limit PCB degradation, the role of carbonate content, overall soil matrix, and PCB availability was assessed. An increase in PCB availability improved treatment efficiency (45% removal by Fe(VI) alone). Results indicated that Fe(VI) displayed higher suitability and efficiency for PCB remediation as compared to the conventional oxidants. The study also proposes potential degradation mechanisms. See the manuscript version of this paper at https://hal-univ-rennes1.archives-ouvertes.fr/hal-01905110/document



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