Removal of metals from synthetic and real galvanic nickel-containing effluents by Saccharomyces cerevisiae

ABSTRACT

The efficiency of Saccharomyces cerevisiae in the removal of heavy metals from effluents was tested using one real and four synthetics nickel-containing effluents. The removal of metal ions from synthetic effluents was studied as a function of pH, interaction time, nickel concentration and temperature. Characterisation of biosorption equilibrium was evaluated employing the Langmuir, Freundlich and Temkin models. The maximum sorption capacity of biomass for Ni(II) was 8.9 mg/g in Ni(II) system, 8.3 mg/g in Ni(II)–Cr(VI)–Fe(III), 11.9 mg/g in Ni(II)–Zn(II)–Sr(II)–Cu(II) and 7.3 in Ni(II)–Zn(II)–Cu(II)–Mo(VI) systems. The kinetics of the biosorption was described using pseudo-first order, pseudo-second order, Elovich model and the intra-particle Weber and Morris diffusion models. According to the thermodynamic parameters the biosorption can be described as a spontaneous process. Fourier-transform infrared analysis was carried out to identify the role of functional groups on metal ions binding. To determine the main metal species present in the solution at different pH values, thermodynamic calculations were performed. The effect of pH and sorbent dosage on metal removal from real industrial effluent was investigated. The two-stage sequential scheme of Ni(II) removal from effluent by the addition of different dosage of new biomass sorbent was proposed.

KEYWORDS:

• Saccharomyces cerevisiae
• metal ions
• industrial effluent
• neutron activation analysis
• FTIR
• thermodynamic calculations

Acknowledgments

This work was supported by the Russian Foundation for Basic Research (RFBR) [grant numbers 18-29-25023 мк].

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes on contributors

Inga Zinicovscaia – Head of the Sector of Neutron Activation Analysis and Applied Research of the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research, Russia. She earned a Ph. D. in environment protection from the Institute of Chemistry, Moldova in 2013.

Nikita Yushin and Tatyana Ostrovnaya – Engineer in the Sector of Neutron Activation Analysis and Applied Research of the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research, Russia

Dmitrii Grozdov – Head of the group in the Sector of Neutron Activation Analysis and Applied Research of the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research, Russia. He earned a Ph.D. in physics from Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia in 2012.

Kirill Boldyrev – a Senior researcher in the Nuclear Safety Institute of the RAS, Russia. He earned a Ph.D. in chemistry from Nuclear Safety Institute, Russia, in 2012.

Elena Rodlovskaya – a Senior researcher in the A.N. Nesmeyanov Institute of Organoelement Compounds of RAS. She earned a Ph.D. in chemistry from A.N. Nesmeyanov Institute of Organoelement Compounds, Russia in 2006.

Additional information

Funding

This work was supported by the Russian Foundation for Basic Research (RFBR) [grant numbers 18-29-25023 мк].