Adsorption behavior and kinetics of methyl orange in water on activated carbon
The adsorption behavior of methyl orange aqueous solution was investigated on husk-based activated carbon.The effects of key factors,i.e.,degassing pretreatment,adsorption time,temperature,adsorbent dosage and initial concentration,on the adsorption efficiency were measured.The kinetic adsorption curves and adsorption isotherms were fitted with theoretical model.The results show that the removal efficiency of methyl orange could be significantly improved by degassing pretreatment,prolonging the time,lowering temperature or reducing the initial concentration.In the context,adsorption equilibrium will be achieved up 90min.Furthermore,adsorption rate will be enhanced by the increase of the amount of activated carbon.In conclusion,adsorption isotherm and adsorption kinetics can be fitted well with Freundlich equation and pseudo-first Lagergren model,respectively.
Activated carbon Methyl orange Adsorption Isotherm Kinetics
Yonghong Wu Qi Yu Hongda XU Zhiyong Liu Mingzhu Sun Jing Zhu
School of Petrochemical Engineering, Shenyang University of Technology, Liaoning Liaoyang 111003 Jinxing Chemical Plant, Liaoyang Petrochemical Fiber Company, Liaoning Liaoyang 111003 School of Chemistry and Chemical Engineering, Shihezi Univerisity, Xinjiang Shihezi 832003
国际会议
太原
英文
318-321
2012-06-23（万方平台首次上网日期，不代表论文的发表时间）