Adsorption Characteristics of Nitrobenzene onto Powdered Activated Carbon
The paper is focused on the adsorption nitrobenzene from aqueous solutions by powdered activated carbon (PAC). Equilibrium adsorption isotherms, kinetics models and competition with aniline were investigated. Equilibrium data obtained have been found to fit modified Freundlich adsorption isotherm with a correlation coefficient of 0.9928. The kinetic measurements confirm that the adsorption process follows a model involving pseudo-second-order reactions with a rate constants of 0.024 mg/min-ug, Intraparticle diffusion study show that the rate-limiting process is governed by film diffusion mainly. In the single or binary mixture solution, the adsorptive capacity of nitrobenzene is greater than aniline. For binary system, aniline has no negative effect on the amounts of nitrobenzene adsorbed. The affinity of PAC for nitrobenzene is greater than aniline.
Adsorption nitrobenzene PAC isotherm kinetics aniline
LIU Zhisheng YIN Jun WANG Jianhui
Department of Municipal Engineering, Changchun Institute of Urban Planning and Design,1893 Tongzhi S Jilin Province Key Laboratory of Water Pollution Control and Resources Reuse, Jilin Institute of Arc
国际会议
The 6th International Symposium of Asia Institute of Urban Environment(亚洲城市环境学会第六届国际会议)
长春
英文
711-716
2009-09-20（万方平台首次上网日期，不代表论文的发表时间）