Degradation of landfill leachate and short chain organic acids by catalytic wet air ozidation over Mn/Ce and Co/Bi catalysts
In this paper, Co/Bi and Mn/Ce catalysts were employed to decompose landfill leachate, n-hexanoic acid, nbutyric acid and acetic acid in the process of catalytic wet air oxidation (CWAO). The CWAO was also carried out with Ni2+and NH4-N+ present, and different pH values for n-butyric solution over the Co/Bi and Mn/Ce catalysts. The catalytic activity of the two catalysts was analyzed basis on the experimental results and characterization parameters. The results indicated that the specific area and pore volume of Mn/Ce catalysts were superior to those of Co/Bi catalyst; the Co/Bi catalysts have a higher reactivity over oxidizing landfill leachate, but a relative lower reactivity over degrading the short chain carboxylic acid in comparison to the Mn/Ce catalysts after 120 min at 200℃ and 220℃. Compared with the decomposition of nbutyric, the reactivity of Mn/Ce catalysts decreased more than that of Co/Bi catalysts on the decomposition of n-butyric with Ni2+ and NH4-N+ present.
Co/Bi Mn/Ce landfill leachate catalytic wet air ozidation
Yu Li Jian Wang Yuming Liu
Energy and Environmental Research Center North China Electric Power University Beijing, China College of Environment and Resources Jilin University Changchun, China Shenzhen Zongxing Environmental Technology Co., LTD Shenzhen, P. R. China
国际会议
上海
英文
3669-3672
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）