The review refers to the adsorption/desorption possibility of the magnetite, both natural and synthetic, with respect to hazardous species dissolved in aqueous solutions. The analysis stresses the attention on typical contaminants such as uranium, cadmium, cobalt, europium and arsenic. Most of the studies, performed so far, are on a laboratory scale without any attempts to be applied at larger either pilot or industrial scales. This especially invokes an analysis addressing what it would be when the scale of application increases beyond that of the laboratory flask. This point is of primary importance when fashionable nano-scale magnetite particles are used for sorption. The choice of magnetite is special because this mineral exhibits strong magnetic properties easily allowing creation of devices and processes for both upstream (adsorption) and downstream/ deposition processes such as fixed bed adsorption, magnetically stabilized beds, magnetic separation, and remote deposition of dangerous materials.
翻译:该审查提到天然和合成磁铁对以水溶解的危险物种的吸附/吸附可能性,该分析强调了对铀、镉、钴、 ⁇ 和砷等典型污染物的注意,迄今为止进行的大多数研究都处于实验室规模,没有尝试在较大的试验或工业规模上加以应用,这特别援引了一种分析,涉及在应用规模超过实验室瓶体时将会出现什么情况。当利用时流行的纳米级磁铁微粒进行吸附时,这一点最为重要。磁铁的选择是特殊的,因为这种矿物显示出很强的磁性特性,很容易为上游(吸附)和下游/沉积过程,例如固定床吸附、磁稳定床、磁分离和危险材料的远距离沉积创造装置和工艺。