Metal removal from chromium containing synthetic effluents by Saccharomyces cerevisiae

Zinicovscaia, I.; Grozdov, D.; Yushin, N.; Abdusamadzoda, D.; Gundorina, S.; Rodlovskaya, E.; Kristavchuk, O.

Авторы: Zinicovscaia I., Grozdov D., Yushin N., Abdusamadzoda D., Gundorina S., Rodlovskaya E., Kristavchuk O.
Журнал: Desalination and Water Treatment
Том: 178
Год издания: 2020
Издательство: Balaban Publishers
Местоположение издательства: Israel
Первая страница: 254
Последняя страница: 270
DOI: 10.5004/dwt.2020.24987
Аннотация: Yeas Saccharomyces cerevisiae, was applied to remove metal ions from four complex effluents with the following composition: Cr-Fe, Cr-Fe-Ni, Cr-Fe-Ni-Zn, and Cr-Fe-Ni-Zn-Cu. The characterization of the biomass surface was investigated by Scanning Electron Microscopy and Fourier-transform Infrared Spectroscopy. The adsorption behavior of Saccharomyces cerevisiae for metal ions present in effluents was studied as a function of pH, initial Cr(VI) concentration, equilibrium time, and temperature. Langmiur, Freundlich, Temkin and Dubinin–Radushkevich equilibrium models have been used to describe the experimental sorption equilibrium profile. The kinetics of the sorption was explained by pseudo-first order, pseudo-second order, Elovich and the intra-particle diffusion models. Maximum biosorption capacities have been calculated calculated from the Langmuir adsorption isotherm, while mean free sorption energies through the Dubinin-Radushkevich model. The negative ΔG° values confirm spontaneous sorption dominated by physisorption. Saccharomyces cerevisiae can be successfully applied for complex wastewater treatment.
Добавил в систему: Родловская Елена Николаевна

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Metal removal from chromium containing synthetic effluents by Saccharomyces cerevisiaeстатья

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