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With the current situation in world economy, rare earth elements are a valuable resource for many innovative technologies. Low supply of these elements and sparse mining sources concentrated in just a few countries caused REE to become a resource critical to the development of many high-tech branches of the industry. Although rare earth elements are widespread in the nature, due to their low concentration in most minerals, their processing based on flotation, gravity or magnetic separation of a concentrate is ofte...

In Poland information about landfills of power industry waste and the composition of waste deposited on them are largely dispersed. There is no data on the content of rare earth elements in ashes and slags. The article presents a developed information system allowing simultaneous access to a number of data on power industry waste landfills (location, technical and technological data) and data on the rare earth content in deposited ashes and slags. The article presents energy waste landfills (both historical and cu...