School of Chemical Engineering, Campinas State University, UNICAMP, Cidade Universitária Zeferino Vaz, Caixa Postal 6066-CEP 13081-970 Campinas, SP, Brazil.
Bioresour Technol. 2011 Apr;102(7):4610-7. doi: 10.1016/j.biortech.2010.12.049. Epub 2010 Dec 30.
The study focuses on the equilibrium of dynamic biosorption in single and binary systems containing Cu(II) and Ni(II) ions using Sargassum filipendula (a marine alga). The experiments were performed in fixed-bed columns with both single-component and bi-component metal solutions (using different molar concentrations). Experimental data were fitted with different equilibrium models such as Langmuir, Langmuir with inhibition, Jain and Snowyink and Langmuir-Freundlich equations. The biosorption of pure metal ions in solution presented adequate capacities both for Cu(II) and Ni(II). In binary solutions the preferential sorption of Cu(II) over Ni(II) was demonstrated by the displacement of Ni(II) (marked overshoot on the breakthrough curves).
本研究采用马尾藻（一种海洋藻类），专注于含有 Cu(II) 和 Ni(II) 离子的单组分和双组分体系中动态生物吸附平衡。实验在固定床柱中进行，使用单一组分和双组分金属溶液（使用不同的摩尔浓度）。实验数据拟合了不同的平衡模型，如 Langmuir、带抑制的 Langmuir、Jain 和 Snowyink 以及 Langmuir-Freundlich 方程。纯金属离子在溶液中的生物吸附对 Cu(II) 和 Ni(II) 都表现出了足够的容量。在二元溶液中，Cu(II) 的优先吸附（突破曲线的过冲）表明了 Ni(II) 的取代。
