Uptake of Metals from Single and Multi-Component Systems by Spirulina Platensis Biomass

Zinicovscaia, Inga; Safonov, Alexey; Tregubova, V. E.; Il’in, V. B.; Cepoi, Liliana; Chiriac, Tatiana; Rudi, Ludmila; Frontasyeva, M. V.

doi:10.1515/eces-2016-0028

Cited by 11 publications

(9 citation statements)

References 26 publications

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“…Bioremediation technique constitutes an attractive alternative to common physico‐chemical remediation methods. Different types of toxic metals, such as chromium, cadmium, lead, and nickel have been removed from wastewater and batch solutions by microorganisms . However, data on the adsorption efficiency of microorganisms for rhenium are not widely reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Zinicovscaia

Safonov

Трошкина

et al. 2018

CLEAN Soil Air Water

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The potential of Spirulina platensis biomass for rhenium ions removal from both batch solutions and industrial effluents is evaluated. The effect of pH, contact time, initial metal concentration, and the temperature of biosorbent treatment on the biosorption process is investigated. The maximum biosorption capacity of 142.9 mg g−1 rhenium is achieved at pH 2, sorbent dosage 0.05 g, and temperature of biosorbent treatment 30 °C. The equilibrium data are well fitted by Langmuir and Freundlich adsorption isotherm models (R2 = 0.99), while the pseudo‐second order kinetic model (R2 > 0.99) is found to describe better the kinetic data. Fourier‐transform infrared (FTIR) spectra shows that rhenium biosorption takes place through two mechanisms: ionic interactions of perrhenate anions with amide and amino‐groups and/or binding to organic functional groups of the cell surface. The rhenium bound to the biomass can be effectively stripped using NH4OH (8%) and the biomass is effectively used for three sorption–desorption cycles. In the case of industrial effluents, S. platensis biomass shows relatively high rhenium removal efficiency (51–55%). S. platensis biomass can be efficiently applied for rhenium removal from industrial effluents.

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Section: Introductionmentioning

confidence: 99%

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Zinicovscaia

Safonov

Трошкина

et al. 2018

CLEAN Soil Air Water

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“…The main bioactive compounds are glutamic acid 9.6 %; γ-linolenic 1.4 %; sulfated polysaccharides -5.0 %, phosfatidylinositol 0.7 %, and phosfatidylcholine 1.9 %. In stationary culture at the end of the life cycle the biomass quantity reaches values of 1.5-1.6 g/dm 3 [5].…”

Section: Fig 1 Silver Accumulation By S Platensis Biomass Determinmentioning

confidence: 99%

“…In bioaccumulation it is possible to reach lower residual concentration of metals due to higher amount of binding sites and continuous biomass growth [4]. In our previous studies, it was shown that the amount of metals accumulated during the bioaccumulation process was 15-40 times higher than in the biosorption experiments [5,6]. In case of precious metals their bioaccumulation can be combined with the formation of nanoparticles [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Among cyanobacteria, the Spirulina platensis has drawn more attention because of its unique chemical composition, characterized by high protein and carbohydrates content, along with numerous vitamins, minerals, and carotenoids. Due to its relatively high sorption capacity, Spirulina platensis biomass is increasingly used for removal or recovery of metals from aqueous solutions [5,10,11].…”

Section: Introductionmentioning

confidence: 99%

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Silver and Gold Ions Recovery from Batch Systems Using Spirulina platensis Biomass

Cepoi

Zinicovscaia

Chiriac

et al. 2019

Ecological Chemistry and Engineering S

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In order to assess ability of Spirulina platensis to recover silver and gold ions from the environment the bioaccumulation of silver and gold ions and their effect on growth, proteins and carbohydrates content of Spirulina platensis biomass was studied. Silver nitrate (AgNO3) in concentration range 0.01-1 mg/dm3 and tetrachloroaurate Na[AuCl4] in concentration range 18.5-370 mg/dm3 were added as component of the Spirulina platensis cultivation medium. In case of silver two cultivation media were studied: standard and Cl-free. The process of silver and gold uptake was traced using neutron activation analysis. Presence of silver ions in standard cultivation medium reduced biomass productivity by 66 %, while in Cl-free biomass productivity was reduced by 11.8 % only. The reduction of proteins content by 30 % in Cl-free medium and by 19 % in standard medium was also observed. The experiments showed that in case of gold ions loading, the biomass productivity and protein content were reduced only at high Na[AuCl4] concentration in the medium. The behaviour of carbohydrates content change was similar under silver and gold loadings: decrease at low metal concentration followed by increase at high metal concentrations. Scanning electron microscopy allowed observation of spherical metal nanoparticles, which were formed extracellularly during silver and gold bioaccumulation. Spirulina platensis can be used for recovery of precious metals as well as metal nanoparticles production.

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“…Studies on the use of eggshells in sewage treatment process have also been carried out [10][11][12][13][14]. The effectiveness of water solutions purification depends on a number of factors, among others pH, concentration, sorbent particles size, dose and contact period, competitive sorption of ions [15,16]. In this context, studies have been carried out aiming at increasing the process intensity by eggshells modification: thermal, e.g.…”

Section: Introductionmentioning

confidence: 99%

Use of The Eggshells in Removing Heavy Metals from Waste Water - The Process Kinetics and Efficiency

Makuchowska-Fryc

2019

Ecological Chemistry and Engineering S

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Studies of the efficiency of Ni, Cu and Cd cations removal from water solutions were carried out, with the use of clay limestone, hen eggshells from eggs for consumption and hen eggshells after hatching, which main element is calcium carbonate. Hen eggshells are a waste product, which can be used as a substitute of clay limestone in removing heavy metals from wet flue gas desulphurisation installation. Mixed solutions of Ni, Cu and Cd were used in the research, with the composition similar to the waste water from wet flue gas desulphurisation installation: Ni (0.009-0.053 mmol/dm3), Cu (0.008-0.057 mmol/dm3) and Cd (0.003-0.008 mmol/dm3). The metals were determined by flame atomic absorption spectrophotometry (F-AAS). Kinetics of the process was analysed and equilibrium parameters were estimated, taking into consideration changes of the solutions pH during the process duration. It was demonstrated that the dominating mechanism of cations removal is their binding in hydroxides and carbonates. The studies demonstrated comparable characteristics of hen eggshells versus clay limestone, in the context of their application in removal of heavy metal cations from solutions.

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Uptake of Metals from Single and Multi-Component Systems by Spirulina Platensis Biomass

Cited by 11 publications

References 26 publications

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Silver and Gold Ions Recovery from Batch Systems Using Spirulina platensis Biomass

Use of The Eggshells in Removing Heavy Metals from Waste Water - The Process Kinetics and Efficiency

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