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Powdered waste sludge from the production of technical stone (TSW), produced by theTechniStone® Company (Hradec Kralove, Czech Republic), was surface modified withFe2+ and Mn2+ inorganic salts and then testified as a potential adsorbent ofenvironmentally important oxyanions (phosphate PO43-, arsenate AsO43- and chromateCrO42-) from contaminated waters. The surface modification in principle consisted increating a thin layer of hydrated Fe/Mn ions in reactive form on the TSW surface.Thanks to the change of the surfa...

This work is a logical conclusion and generalization of results of two-year researchoriented to design the integrated technology of processing of diopside-containing ores towin the scandium compounds and get the wide spectrum of large-capacity products. Thetraditional technology of sulfuric uncovering of mineral raw materials is applied withinthe scope of this work. The technology of scandium compounds extraction with the useof impregnators, which are based on the macroporous carbons soaked with diethylhexylphosph...