Adsorption removal of phosphorus from aqueous solution by the activated carbon prepared from sugarcane bagasse
The activated carbon was prepared firstly by soaking sugarcane bagasse in 0.39％ AlCl3 solution, and then by carbonization in a charcoal kiln at 400℃ for 2 days and activation in a muffle furnace at 900℃ for 100 minutes. The adsorption removal of phosphorus from aqueous solution by the prepared activated carbons was studied in a batch adsorption system. The amount of phosphorus adsorbed per unit mass of adsorbent decreased from 1.13 to 0.33 mg/g and the removal percentage of phosphorus increased from 22.64 to 99.27％ with increasing adsorbent dosages from 100 to 1500 mg in 50mL solution of the initial phosphorus concentration of 10mg/L. With increasing phosphorus concentrations from 1 to 30 mg/L, the amount of phosphorus adsorbed increased from 0.06 to 1.11 mg/g and the percent adsorption decreased from 91.93 to 57.34％. The dynamical data fit very well with the pseudo-secondorder kinetic model (R~2>0.9962) and the Langmuir model agreed well with the experimental data (R~2> 0.9648).
Meina LIANG Honghu Zeng Yinian ZHU Zelong XU Huili LIU
College of Environmental Science and Engineering, Guilin University of Technology Jian-Gan Road 12, Guilin 541004, P.R.China
国际会议
哈尔滨
英文
1046-1050
2011-03-26（万方平台首次上网日期，不代表论文的发表时间）