Abstract
Методом динамических выходных кривых изучена кинетика сорбции тяжелых металлов(ТМ): Cr, Ni, Cu, Zn, Sr, Cd, Pb, а также макрокомпонентов H+, К+, Ca2+ из поверхностной воды с рН3.7 на модифицированном ПЭИ–КЛТ при совместном присутствии компонентов и низких концентрациях ТМ в исследуемом растворе (0.3-1.5 мг/дм3). Рассчитаны значения сорбционных характеристик(коэффициенты распределения и кинетические характеристики). На примере Н+, Cu, Cr показана возможность расчета динамики сорбции на ПЭИ–КЛТ из поверхностной воды с рН 3.7.
Highlights
The method of dynamic output curves was used to study the sorption of heavy metals (HM) Cr, Ni, Cu, Zn, Sr, Cd, Pb and macro-components H+, K + and Ca2+ from surface water with pH 3.7 on modified PEI–CLT in the joint presence of components and low concentrations (0.3-1.5 mg/l)
HM sorption kinetics was estimated from the shapes of the dynamic output curves
The kinetic sorption of H+, K+ were described by the particle diffusion; the corresponding values of the particle diffusion coefficients were for H+ 10-8, for K+ - 5.10-10 sm2/с
Summary
The method of dynamic output curves was used to study the sorption of heavy metals (HM) Cr, Ni, Cu, Zn, Sr, Cd, Pb and macro-components H+, K + and Ca2+ from surface water with pH 3.7 on modified PEI–CLT in the joint presence of components and low concentrations (0.3-1.5 mg/l). Ключевые слова: метод динамических выходных кривых, поверхностная вода рН 3.7, органоцеолит ПЭИ-КЛТ, тяжелые металлы, сорбционные характеристики, расчет динамики сорбции. The distribution coefficients (ml/g) were for H+ ion 6·103, for K+ - (1-5)·103, for Cu2+ - (2.6-3.1)·103, for Cr2O72- - >1.8·103, for Pb - >(3.2-5.8)·103, for Ca2+ and Sr2+- (200-400), and even lower for Cd, Ni, Zn. HM sorption kinetics was estimated from the shapes of the dynamic output curves.
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