Al. I. Cuza University of Iasi, Faculty of Geography and Geology, Department of Geology and Geochemistry, Romania.
Bioresour Technol. 2012 Jan;103(1):489-93. doi: 10.1016/j.biortech.2011.10.016. Epub 2011 Oct 19.
The biosorption of Pb(II), Cd(II), and Co(II), respectively, from aqueous solution on green algae waste biomass was investigated. The green algae waste biomass was obtained from marine green algae after extraction of oil, and was used as low-cost biosorbent. Batch shaking experiments were performed to examine the effects of initial solution pH, contact time and temperature. The equilibrium biosorption data were analyzed using two isotherm models (Langmuir and Freundlich) and two kinetics models (pseudo-first order and pseudo-second order). The results indicate that Langmuir model provide best correlation of experimental data, and the pseudo-second order kinetic equation could best describe the biosorption kinetics of considered heavy metals.
研究了从水溶液中分别吸附 Pb(II)、Cd(II)和 Co(II)的生物吸附作用，所用的生物吸附剂是从海洋绿藻中提取油脂后的藻类废料，它是一种低成本的生物吸附剂。进行了间歇摇瓶实验，以考察初始溶液 pH 值、接触时间和温度的影响。用两种等温线模型（朗缪尔和弗伦德利希）和两种动力学模型（拟一级和拟二级）对平衡生物吸附数据进行了分析。结果表明，朗缪尔模型能够最好地关联实验数据，而拟二级动力学方程能够最好地描述所考虑的重金属的生物吸附动力学。
