Electro-remediation in the presence of ferrous sulfate as an ex-situ alternative treatment for hydrocarbon polluted soil

Flores, R. y García, M.G. y Peralta Hernández, Juan Manuel y Hernández Ramírez, Aracely y Méndez, E. y Bustos, E. (2012) Electro-remediation in the presence of ferrous sulfate as an ex-situ alternative treatment for hydrocarbon polluted soil. International journal of electrochemical science, 7. pp. 2230-2239. ISSN 14523981

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Resumen

Hydrocarbons in soil have become a growing concern due to their chronic toxicity and their impact on human health and the environment. Various conventional physical, chemical and biological technologies are available for the treatment of contaminated sites; however, they are unsuccessful in the remediation of soils that contain compounds with low solubility, such as hydrocarbons. Electrokinetic remediation is one of the most promising technologies for the remediation of soils. In this process, application of an electric field between two electrodes inserted in the contaminated mass allows the separation of contaminants, with or without the addition of chemical reagents. This study investigates the feasibility of using an enhanced electrokinetic process in the presence of FeSO4 under acidic conditions for the remediation of hydrocarbons contained in Vertisol pelic and Gleysol soil. Hydrocarbon removal was more efficient in Vertisol than in Gleysol soil when this electrochemical treatment was applied.

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