Department of Environmental Engineering and Health, Yuanpei University, Hsinchu, Taiwan.
J Hazard Mater. 2010 Jun 15;178(1-3):320-5. doi: 10.1016/j.jhazmat.2010.01.081. Epub 2010 Feb 1.
To establish an efficient oxidation process for carbofuran degradation, the effects of some operating parameters such as dosages of H(2)O(2), Fe(2+) and initial carbofuran concentrations were observed during carbofuran degradation by the ultrasound process, Fenton process and a combined ultrasound/Fenton process. The degradation kinetics of carbofuran was also examined based on the experimental data. The results show that more than 99% of the carbofuran was degraded by the ultrasound/Fenton process within short reaction time periods. Increased dosages of H(2)O(2) and Fe(2+) enhanced the degradation of carbofuran in the ultrasound and Fenton oxidation processes, but initial carbofuran concentrations decreased carbofuran degradation in both the Fenton and ultrasound/Fenton processes. The degradation kinetics of carbofuran by the three oxidation processes was found to be in accordance with first-order reaction kinetics. The results provide fundamental information about the treatment of carbofuran wastewater and/or other pesticides by the ultrasound/Fenton oxidation process.
为了建立一种高效的氧化工艺来降解克百威，在超声过程、芬顿过程和超声/芬顿联合过程中观察了一些操作参数（如 H(2)O(2)、Fe(2+)的剂量和初始克百威浓度）对克百威降解的影响。还根据实验数据考察了克百威的降解动力学。结果表明，在短的反应时间内，超声/芬顿过程可使超过 99%的克百威降解。增加 H(2)O(2)和 Fe(2+)的剂量可增强超声和芬顿氧化过程中克百威的降解，但初始克百威浓度会降低芬顿和超声/芬顿过程中克百威的降解。三种氧化过程中克百威的降解动力学均符合一级反应动力学。这些结果为通过超声/芬顿氧化过程处理克百威废水和/或其他农药提供了基础信息。
