Enhanced Degradation of Chlorobenzene with Microwave-Induced Zerovalent Iron
Microwave (MW) is applied to enhance Chlorobenzene (CB) removal using micron Fe (Micro-Fe), pretreatment fresh Fe0 (Pre-Fe0) and commercial Fe0 (Comm-Fe0) as the dielectric media. The MW energy is applied at 250 W for 150 sec. The results show that in the presence of MW, better CB removal can be achieved than without MW application for all types of nonvalent iron. Comparing to CB removal without MW irradiation, the MW-induced irons are capable of removing 13.6 time (61.2% vs. 4.5%) for Micro-Fe, 2.8 time (76.5% vs. 27.5%) for Pre-Fe0, and 3.6 time (65.4% vs. 18.1%) more CB. The MW radiation penetrates the CB solution to reach Fe0 surface for increasing iron oxidizes, and surface activity, thus enhancing the CB removal. Additionally, in the presence of MW, the CB activation energy drops 34.0% (Micro-Fe), 15.1% (Pre-Fe0) and 16.1% (Comm-Fe0). Hence the MW-induced zerovalent iron can increase the rate of CB removal in addition to reducing the CB activation energy.
microwave-induced activation energy (Ea) zero valent iron chlorobenzene (CB)
LEE Chien-Li JOU Chih-Ju G
Department of Safety,Health and Environmental Engineering,Kaohsiung First University of Science and Technology,Taiwan
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
406-409
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）