摘要
对比超高交联吸附树脂NJ 8与AmberliteXAD 4对苯甲酸的静态吸附动力学性质 ,并深入讨论温度和起始浓度对平衡时间和吸附速率的影响。NJ 8和XAD 4两种树脂在吸附苯甲酸的过程中 ,膜扩散和颗粒内扩散均为主控步骤 ,但是前者颗粒内扩散占据优势 。
A comparison study is made on the adsorption kinetics of benzoic acid by high-crosslinked adsorption resin NJ-8 with that by Amberlite XAD-4, and the effects of temperature and initial solute concentration on equilibrium time and adsorption rate are deeply investigated. Results show both film diffusion and particle diffusion are the rate-controlling process in the adsorption systems tested. But particle diffusion is more predominant for NJ-8 while film diffusion for Amberlite XAD-4.
出处
《环境科学与技术》
CAS
CSCD
2004年第6期3-5,共3页
Environmental Science & Technology
基金
国家自然科学基金资助项目 ( 2 0 2 740 1 7)
江苏省自然科学基金资助项目 (BK2 0 0 0 0 1 6)
关键词
超高交联吸附树脂
苯甲酸
吸附动力学
high crosslinked adsorption resin
benzoic acid
adsorption kinetics
