Adsorption of Cadmium from Aqueous Solutions onto Activated Carbon and Recycle Materials
This paper described the adsorption characteristics of heavy metalcadmium from aqueous solution onto activated carbon and recycle materials.The adsorbent materials selected in our study were activated carbon,sawdust,and peanut shell.The effects of adsorption time,particle size of adsorbent,adsorbent mass and initial adsorbate concentration were investigated using batch adsorption experiments.The adsorption isotherms were obtained using concentrations of the cadmium ion ranging from 5 to 40 mg/L.Our results demonstrate that the removal rate of cadmium for each material initially increased rapidly with the increase of adsorption time and the optimal removal efficiencies were reached within 3 h; with the increase of the adsorbent particle size,the removal rate of cadmium for both sawdust and peanut shell decreased whereas for activated carbon almost all cadmium were removed; The removal rate increased when the amount of sawdust and peanut shell increased from 0.2 g to 1 g,the amount of activated carbon increased from 0.05 g to 0.4 g; the removal rate decreased with the increase of initial cadmium concentration.
Adsorption Cadmium Activated carbon Recyclable materials
Xiaofeng Liu Xin Xu Xiaoqiang Dong Junboum Park
Taiyuan University of Technology,Taiyuan,China;Department of Civil and Environmental Engineering,Seo Taiyuan University of Technology,Taiyuan,China Department of Civil and Environmental Engineering,Seoul,Korea
国际会议
The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)
杭州
英文
273-279
2018-10-28（万方平台首次上网日期，不代表论文的发表时间）