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Journal of Spectroscopy
Volume 2014, Article ID 578638, 5 pages
Research Article

Heat-Activated Persulfate Oxidation of Chlorinated Solvents in Sandy Soil

1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
2School of Nursing, Jilin University, Changchun 130021, China

Received 1 July 2014; Accepted 15 July 2014; Published 3 August 2014

Academic Editor: Tifeng Jiao

Copyright © 2014 Jialu Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Heat-activated persulfate oxidative treatment of chlorinated organic solvents containing chlorinated ethenes and ethanes in soil was investigated with different persulfate dosages (20 g/L, 40 g/L, and 60 g/L) and different temperatures (30°C, 40°C, and 50°C). Chlorinated organic solvents removal was increased as persulfate concentration increase. The persulfate dosage of 20 g/L with the highest OE (oxidant efficiency) value was economically suitable for chlorinated organic solvents removal. The increasing temperature contributed to the increasing depletion of chlorinated organic solvents. Chlorinated ethenes were more easily removed than chlorinated ethanes. Moreover, the persulfate depletion followed the pseudo-first-order reaction kinetics ( , ). Heat-activated persulfate appeared to be an effective oxidant for treatment of chlorinated hydrocarbons.