生物吸附法从电子废弃物中回收贵金属的研究进展

Progress of Precious Metals Recovery from Electronic Waste by Biosorption

回收电子废弃物不仅是资源循环和环境保护的迫切需要,同时,通过回收其中的贵金属可以产生较好的经济效益。生物吸附法回收贵金属具有原料种类丰富、成本低、能耗少、效率高及环境友好等优点,成为最具有前景的金属回收技术。介绍了生物吸附种类及溶液pH值、温度及竞争离子对吸附过程的影响,重点介绍了国内外采用生物吸附法回收电子废弃物中Au、Ag及铂族金属的研究进展。

Recycling of electronic waste is an urgent demanding not only from the point of resource recycling and environment protection,but also from the huge economic benefits by recovering precious metals from the electronic waste.Biosorption has emerged many advantages,such as a wide variety of raw materials,low-cost,low energy consumption,a high-efficiency and environmentally friend,it become a potential recovery method for precious metals from secondary sources,especially electronic waste.This article describes the type of absorbents and the influencing factors of biosorption.The mainly factors involve in the pH,temperature and compete ions.The progress of research in recovery of precious metals from electronic waste by biosorption is highlighted in the paper.