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Use of Ashes from Thermal Power Plants for Effluents Treatment

The results of the aqueous liquids purification by sorption from various impurities by using ashes as sorbent resulting from the solid-fuel combustion (wood processing waste, coal) are presented. Sorption kinetic dependences have been studied, sorption characteristics of concerned ash samples relative to iron and phosphate counter-ions in aqueous liquids have been determined. Purification and sorption capacity values of concerned ash samples relative to ions extracted from aqueous liquids have been calculated. High efficiency of iron ion extraction from aqueous liquids by bypassing-products wihout any additional reagent has been discovered. Wood ash is a promising sorbent for phosphate ions.