Affiliation:
1. Research Institute of Chemical Defense
Abstract
H2O2 aerosol was used to oxidize dichlorvos vapor. 80.7% of dichlorvos, with the initial concentration of 90.9 mg/m3, was decontaminated when the H2O2 concentration kept in the range of 110~130 mg/m3 within 60 min. According to the oxidation products, analyzed by GC-MS, the decontamination reaction mechanism was discussed. Radical chain reaction is the main decontamination mechanism. H2O2 is dissociated to HOO-, which can induce the formation of ·OH. The double bond in dichlorvos molecule is attacked by ·OH to form molecule radical, which is further oxidized to 1,1-dichloro ethoxy dimethyl phosphate, 1,1,1-trichloro-2-hydroxyl-ethyl dimethyl phosphate, dimethyl phosphite, dimethyl phosphate, trimethyl phosphate, methyl phosphate, dichloro acetaldehyde, oxalic acid, CH2Cl2, CHCl3, parts of which are mineralized to phosphoric acid, CO2, H2O and chloridion.
Publisher
Trans Tech Publications, Ltd.
Reference10 articles.
1. Z. G. Li, Y. Li, Z. N. Liu, et al. Advanced Materials Research, Vol. 554-556(2012), pp.1656-1659.
2. Y. C. Yang, J. A. Baker, J. R Ward. Chem. Rev., Vol. 92(1992), pp.1729-1743.
3. N. Ahmad, S. Maitra, B. K. Dutta, et al. J. of Environ. Sci., Vol. 21(2009), pp.1735-1740.
4. L. Zhong, H. Y. Zhan. Journal of South China University of Technology(Natural Science), Vol. 29(2001), pp.83-86.
5. G. W. Wagner, L. R. Procell, D. C. Sorrick, et al. Ind. Eng. Chem. Res., Vol. 49(2010), 3099-3105.
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