Abstract

There was examined bacterial leaching method of rare earth and precious metals from ashes and slags waste of power plants as well as presented plant lay-out for method implementation. There was presented description for ashes and slags preparation to biological leaching, process of preparation and accumulation of bacterial biomass as well as described operation and arrangement of laboratory setup for rare earth and precious metals biological leaching from ash dumps of CHPs. Field experiments demonstratedthat proposed method produced positive effect of increased extraction for rare earth metals.

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