Andrès Y, Texier A C, Le Cloirec P
Ecole des Mines de Nantes, GEPEA, UMR-CNRS 6144, BP 20722, 44 307 Nantes Cedex 3, France.
Environ Technol. 2003 Nov;24(11):1367-75. doi: 10.1080/09593330309385681.
This paper reviews published work on the sorption of rare earth elements by microbial biomass. In a first part, the biosorption capacities and the various experimental conditions performed in batch reactor experiments are compared. Secondly, sorption modelling generally used in biosorption studies are described. Thirdly, the microbial cell wall characteristics of the metallic ion binding sites are considered. From these observations it seems that the important functional groups for metallic ion fixation are the carboxyl and the phosphate moieties. Moreover, the competing effect of various ions like aluminium, iron, glutamate, sulphate etc. is described. Finally, some adsorption results of the rare earth elements in dynamic reactors are presented.
本文综述了已发表的关于微生物生物质对稀土元素吸附作用的研究成果。第一部分比较了在间歇式反应器实验中所表现出的生物吸附能力及各种实验条件。第二部分描述了生物吸附研究中普遍使用的吸附模型。第三部分探讨了金属离子结合位点的微生物细胞壁特征。从这些观察结果来看，对于金属离子固定而言重要的官能团是羧基和磷酸基团。此外，还描述了铝、铁、谷氨酸、硫酸盐等各种离子的竞争效应。最后，给出了稀土元素在动态反应器中的一些吸附结果。
