Maleki Afshin, Erfan Mohammad Bagher Khadem, Mohammadi Abdolmotaleb Seied, Ebrahimi Roya
Kurdistan University of Medical Sciences, Sanandaj, Iran.
Pak J Biol Sci. 2007 Jul 15;10(14):2348-52. doi: 10.3923/pjbs.2007.2348.2352.
Adsorption studies for Carbolic Acid (phenol) removal from aqueous solution on commercial powdered activated carbon were carried out. Batch kinetics and isotherm studies were carried out under varying experimental conditions of contact time, initial phenol concentration, adsorbent dose and pH. Adsorption equilibrium was reached within 6 h for phenolic concentrations 100-500 mg L(-1). The adsorption of phenol increases with increasing initial phenol concentration and decreases with increasing the solution pH value. The equilibrium data in aqueous solutions was well represented by the Langmuir and Freundlich isotherm models. Kinetics of adsorption followed a first order rate equation. The studies showed that the palm seed coat carbon can be used as an efficient adsorbent material for the removal of phenolics from water and wastewater.
开展了利用商用粉末活性炭从水溶液中去除石炭酸（苯酚）的吸附研究。在接触时间、初始苯酚浓度、吸附剂剂量和pH值等不同实验条件下进行了间歇动力学和等温线研究。对于浓度为100 - 500 mg L(-1)的酚类物质，6小时内达到吸附平衡。苯酚的吸附量随初始苯酚浓度的增加而增加，随溶液pH值的增加而降低。水溶液中的平衡数据可用朗缪尔和弗伦德利希等温线模型很好地表示。吸附动力学遵循一级速率方程。研究表明，棕榈种皮炭可作为一种高效吸附材料用于去除水和废水中的酚类物质。
