Immediate remediation of heavy metal (Cr(VI)) contaminated soil by high energy electron beam irradiation

Jing Zhang; Guilong Zhang; Dongqing Cai; Zhengyan Wu

doi:10.1016/j.jhazmat.2014.11.007

Immediate remediation of heavy metal (Cr(VI)) contaminated soil by high energy electron beam irradiation

J Hazard Mater. 2015 Mar 21:285:208-11. doi: 10.1016/j.jhazmat.2014.11.007. Epub 2014 Nov 13.

Authors

Jing Zhang¹, Guilong Zhang¹, Dongqing Cai², Zhengyan Wu³

Affiliations

¹ Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei 230031, PR China; Bioenergy Forest Research Center of State Forestry Administration, Hefei 230031, PR China.
² Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei 230031, PR China; Bioenergy Forest Research Center of State Forestry Administration, Hefei 230031, PR China. Electronic address: dqcai@ipp.ac.cn.
³ Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences and Anhui Province, Hefei 230031, PR China; Bioenergy Forest Research Center of State Forestry Administration, Hefei 230031, PR China. Electronic address: zywu@ipp.ac.cn.

PMID: 25497313
DOI: 10.1016/j.jhazmat.2014.11.007

Abstract

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 γ-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).

Keywords: Cr(VI) contaminated soil; High energy electron beam irradiation; Reduction; Reductive radicals.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Chromium / radiation effects*
Electrons*
Environmental Restoration and Remediation / methods*
Gamma Rays
Oxidation-Reduction
Soil Pollutants / radiation effects*

Substances

Soil Pollutants
Chromium
chromium hexavalent ion