Basfar Ahmed A, Khan Hasan M, Al-Shahrani Ahmed A, Cooper William J
Atomic Energy Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia.
Water Res. 2005 May;39(10):2085-95. doi: 10.1016/j.watres.2005.02.019.
The destruction of methyl tert-butylether (MTBE) in water in the presence of chloroform has been studied using 60Co 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.
利用钴 - 60γ 辐照研究了在氯仿存在下水中甲基叔丁基醚（MTBE）的降解情况。对三种不同浓度的单一溶质 MTBE 和 CHCl₃ 的蒸馏水进行不同时间的辐照，以获取剂量降解信息。然后，对两种不同浓度的 MTBE 和一种浓度的 CHCl₃ 的混合物进行辐照。使用包含最近测定的双分子速率常数的动力学模型来描述 MTBE 和 CHCl₃ 单独以及混合时的降解情况。这些研究在蒸馏水中进行，大大简化了辐射化学过程。随着建模能力的提高，我们更接近于能够使用该模型来研究天然水中的“实际”混合物。
