ADSORPTION OF HEAVY-METAL IONS BY ASHES OF COALS OF IRSHA-BORODINSKY, ISHIDEISKY AND NERYUNGRINSKY COALFIELDS

摘要

The authors describe the results of a study of the adsorption of a number of heavy metals on fly ash of coals of Irsha-Borodinsky and Neryungrinsky coalfields and on the ash of young hard coals of the Ishideisky coalfield. It is shown that the higher adsorptive capacity is observed in ash samples with a high content of calcium oxide. It has been found that the adsorption on the coals considered in a sulfuric acid medium proceeds better than in a hydrochloric acid medium.