Application of rice husk and its ash in phenol removal from aqueous solution
The potential of dee husk and flee husk ash for phenol adsorption from aqueous solution was studied.Batch kinetics and isotherln studies were carried out under varying experimental conditions of contact time,phenol concentration,adsorbent dose and pH.Adsorption equilibrium of rice husk and rice husk ash was reached within 6 hr for phenotic concentration 150-500 ugL-1 and 3hr for phenol concentration 500-1.300 ugL-1 respectively.Kinetics of adsorption obeyed a first-order rate equation.The adsorption of phenol increases with increasing the solution pH value.The suitability of the Freundlich and Langmuir adsorption models to the equilibrium data were investigated for each phenol-sorbent system.The results showed that the equilibrium data for all the phenol-sorbent systems fitted the Freundlich model best within the concentration range studied.A comparative study showed that rice husk ash is very effective than rice husk for phenol removal.The studies showed that the rice husk ash can be used as an efficient adsorbent material for removal of phenolic from water and wastewater.
Phenol Rice Husk Rice Husk Ash Adsorption Aqueous System
Masoud Alasvand ZARASVAND Afshin MALEKI Akbar ESLAMI Reza REZAEE
Faculty of Medicine,Kurdistan University of Medical Sciences,Sanandaj,66177-13391,Iran Faculty of Health,Kurdistan University of Medical Sciences,Sanandaj,66177-13391.Iran Faculty of Health,Zanjan University of Medical Sciences,Zanjan,45175-2138,Iran
国际会议
西安
英文
675-681
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）