Journal of Hazardous Materials, Vol.285, 208-211, 2015
Immediate remediation of heavy metal (Cr(VI)) contaminated soil by high energy electron beam irradiation
This work developed an immediate and high-performance remediation method for Cr(VI) contaminated soil (CCS) using high energy electron beam (HEEB) irradiation. The result indicated that, compared with gamma-ray irradiation, HEEB irradiation displayed a significant reduction efficiency on Cr(VI) in CCS to Cr(III) with substantially lower toxicity, which was mainly attributed to the reduction effects of electrons, hydrated electrons, and reductive radicals generated in the irradiation process of HEEB. This work could provide a one-step and effective method for the remediation of heavy metal contaminated soil (HMCS). (C) 2014 Elsevier B.V. All rights reserved.
Keywords:High energy electron beam irradiation;Cr(VI) contaminated soil;Reduction;Reductive radicals