algerian journal of environmental science and technology
Volume 3, Numéro 1, Pages 37-44
2017-04-30

Degradation Of 2.2 Dichlorovinyl Dimethyl Phosphate (ddvp) ‎in Aqueous Solution, By Gamma Radiation.‎



Authors : Meguenni H . Mahlous M . Zoubiri S . Bensemmane R . Rebaia M .

Abstract

The degradation of the 2.2 dichlorovenyl dimethyl phosphate in ‎aqueous suspension with gamma irradiation was studied. The ‎solution was irradiated to absorbed doses varying from 0.1 to 10 ‎kGy, using a 60Co gamma source. The results showed that the ‎dichlorvoswas completely degraded at the dose of 10kGy. Some ‎by-products formed during the radiation degradation process ‎wereidentified by gas chromatography associated to mass ‎spectrometry (GC-MS), among them, Phosphoric acid trimethyl ‎ester (C1); 2,chloroethenyl dimethyl ester phosphoric acid (C2) ‎and o-methyl o-propyl isopropylphosphonate (C3).A ‎degradation pathway for DDVP is proposed based on the ‎identified by- products.‎

Keywords

Degradation, ‎ Gamma radiation, DDVP, ‎ By-products, ‎ Degradation pathway

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