The Remediation of Dysprosium-Containing Effluents Using Cyanobacteria Spirulina platensis and Yeast Saccharomyces cerevisiae

Zinicovscaia, I.; Yushin, N.; Grozdov, D.; Peshkova, A.; Vergel, K.; Rodlovskaya, E.

Авторы: Zinicovscaia Inga, Yushin Nikita, Grozdov Dmitrii, Peshkova Alexandra, Vergel Konstantin, Rodlovskaya Elena
Журнал: Microorganisms
Номер: 11
Год издания: 2023
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1
Последняя страница: 13
Номер статьи: 2009
DOI: 10.3390/microorganisms11082009
Аннотация: Dysprosium is one of the most critical rare earth elements for industry and technology.A comparative study was carried out to assess the biosorption capacity of cyanobacteriaSpirulina platensis and yeast Saccharomyces cerevisiae toward dysprosium ions. The effect of experimentalparameters such as pH, dysprosium concentration, time of contact, and temperature onthe biosorption capacity was evaluated. Biomass before and after dysprosium biosorption wasanalyzed using neutron activation analysis and Fourier-transform infrared spectroscopy. For bothbiosorbents, the process was quick and pH-dependent. The maximum removal of dysprosium usingSpirulina platensis (50%) and Saccharomyces cerevisiae (68%) was attained at pH 3.0 during a one-hourexperiment. The adsorption data for both biosorbents fitted well with the Langmuir isotherm model,whereas the kinetics of the process followed the pseudo-second-order and Elovich models. The maximumbiosorption capacity of Spirulina platensis was 3.24 mg/g, and that of Saccharomyces cerevisiae was5.84 mg/g. The thermodynamic parameters showed that dysprosium biosorption was a spontaneousprocess, exothermic for Saccharomyces cerevisiae and endothermic for Spirulina platensis. Biological sorbentscan be considered an eco-friendly alternative to traditional technologies applied for dysprosiumion recovery from wastewater.Keywords: Saccharomyces cerevisiae; Spirulina platensis; bioremediation; pollution
Добавил в систему: Баранов Олег Валерьевич

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