Radiation induced decomposition of methyl tert-butyl ether in water in presence of chloroform:: Kinetic modelling

被引:97
作者
Basfar, AA
Khan, HM
Al-Shahrani, AA
Cooper, WJ
机构
[1] Atom Energy Res Inst, Riyadh 11442, Saudi Arabia
[2] Univ Peshawar, Radiat Chem Lab, Natl Ctr Excellence Phys Chem, Peshawar 25120, Pakistan
[3] Univ N Carolina, Dept Chem, Wilmington, NC 28409 USA
[4] Univ N Carolina, Ctr Marine Sci, Wilmington, NC 28409 USA
关键词
chloroform; MTBE; gamma-irradiation; kinetic modeling;
D O I
10.1016/j.watres.2005.02.019
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The destruction of methyl tert-butylether (MTBE) in water in the presence of chloroform has been studied using Co-60 gamma irradiation. Distilled water solutions at three different concentrations of the individual solutes MTBE and CHCl3 were irradiated for various times to provide dose destruction information. Then, the irradiation of a mixture of MTBE (at two different concentrations) and CHCl3 (at one concentration) was conducted. A kinetic model was used incorporating recently determined bimolecular rate constants to describe the destruction of the MTBE and CHCl3 individually and in mixtures. These studies were conducted in distilled water simplifying the radiation chemistry significantly. With the improvements in the modelling capability, we are closer to being able to use the model to study "real-world" mixtures in natural waters. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2085 / 2095
页数:11
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