State Key Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, People's Republic of China.
School of Civil Engineering, Henan Polytechnic University, Jiaozuo, 454003, People's Republic of China.
Environ Sci Pollut Res Int. 2014 Feb;21(3):1809-1818. doi: 10.1007/s11356-013-2075-1. Epub 2013 Aug 25.
Adsorption of fluoranthene (FLA) in surfactant solution on activated carbon (AC) was investigated. Isotherm, thermodynamic, and kinetic attributes of FLA adsorption in the presence of the surfactant on AC were studied. Effects of AC dosage, initial concentration of TX100, initial concentration of FLA, and addition of fulvic acid on adsorption were studied. The experimental data of both TX100 and FLA fitted the Langmuir isotherm model and the pseudo-second-order kinetic model well. Positive enthalpy showed that adsorption of FLA on AC was endothermic. The efficiency of selective FLA removal generally increased with increasing initial surfactant concentration and decreasing fulvic acid concentration. The surface chemistry of AC may determine the removal of polycyclic aromatic hydrocarbons. The adsorption process may be controlled by the hydrophobic interaction between AC and the adsorbate. The microwave irradiation of AC may be a feasible method to reduce the cost of AC through its regeneration.
研究了表面活性剂溶液中荧蒽（FLA）在活性炭（AC）上的吸附。研究了表面活性剂存在下 FLA 在 AC 上吸附的等温线、热力学和动力学特性。考察了 AC 用量、TX100 初始浓度、FLA 初始浓度和腐殖酸添加对吸附的影响。TX100 和 FLA 的实验数据均很好地符合朗缪尔等温线模型和准二级动力学模型。正焓表明 FLA 在 AC 上的吸附是吸热的。随着初始表面活性剂浓度的增加和腐殖酸浓度的降低，选择性去除 FLA 的效率通常会增加。AC 的表面化学性质可能决定多环芳烃的去除。吸附过程可能受 AC 和吸附质之间的疏水相互作用控制。通过微波辐射 AC 可能是一种可行的方法，通过其再生来降低 AC 的成本。
