Abstract
The sorption of iron (III) and copper (II) ions on natural clay minerals of deposits of Buryatia is investigated. The adsorption of ions of these metals depends on pH of solution, clay loading, concentration of metals ions and also on the temperature of adsorption carrying out and regularities of influence of these parameters on adsorption efficiency are determined. Kinetic regularities of adsorption of ions of Fe3+ and Cu2+ on natural clays are consistent with kinetics model of pseudo- second order. The isotherms of equilibrium adsorption of above-mentioned ions on natural clay are described by Langmuir equation with the correlation coefficient of R2 equal 0.994. Results of testing of clays in the process of purification of adit wastewater of iron and copper ions testify to a possibility of effective use of natural clays of Buryatia in sewage treatment from ions of heavy metals.
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