Improvement of Sorption Capacity and Applicability of Biosorbent by Immobilization

• Autorzy: Hroncova, Jana , Luptakova, Alena , Briancin, Jaroslav , Kupka, Daniel

Warianty tytułu

PL

Poprawa zdolności sorpcyjnej i zastosowania biosorbentu poprzez immobilizację

• Języki publikacji: EN

Abstrakty

EN

The water contamination by toxic metal ions is a worldwide environmental problem. High concentrations are hazardous for all living organisms, causing many disorders and diseases and ecological damages to the surroundings. Biosorption is an innovative technology that employs inactive and dead biomass (bacteria, fungi, algae, biowaste) for the recovery of metals from aqueous solutions. Sulphate-reducing bacteria utilization is one of the options how to prepare applicable sorbent which removes metal ions from water. This material is created as a consequence of bacteria metabolism in anaerobic environment. The use of freely suspended biomass is often impractical and has some disadvantages. In contrast to this, application of immobilized biomass shows more benefits including increased mechanical strength, resistance to chemical environment, easy separation of cells and effluents, high biomass performance and repeated use in many adsorption/desorption cycles. Cell entrapment is the most widely used method for immobilization. In this technique, the cells are enclosed in a polymeric matrix which is porous enough to allow diffusion of substrate to the cells. The aim of this work was to examine and compare the sorption ability of biogenic iron sulphides created by sulphate-reducing bacteria in “free” and “entrapped” form. Precipitates were synthesized in reagent bottles with bacteria culture and growth media Postgate C, at 30 °C during 60 days, subsequently dried and analysed. Prepared samples were immobilized using sodium alginate. Sorption of cadmium from model solutions was realized in 100 ml Erlenmeyer flasks, with sorbent dose 1 g/l, during 24 hours. During experiments, the samples showed a satisfying stability and maximum adsorption capacity achieved 38 mg/g. The results refer to good sorption properties of immobilized samples and their potential for further practical use.

Słowa kluczowe

PL

biosorbent; immobilizacja; metale toksyczne; zanieczyszczenie wody

EN

biosorbent; immobilization; toxic metals; water contamination

• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 1
• Strony: 645--651
• Opis fizyczny: Bibliogr. 8 poz., tab., wykr., zdj.

Twórcy

autor

Hroncova, Jana

• Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia,

autor

Luptakova, Alena

• Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia,

autor

Briancin, Jaroslav

• Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia,

autor

Kupka, Daniel

• Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia,

Bibliografia

• 1. A. Özer, D. Özer, “Comparative study of the biosorption of Pb(II), Ni(II) and Cr(VI) ion onto S. cerevisiae: determination of biosorption heats,” J. Hazard. Mater., vol. 100, pp. 219-228, 2003.
• 2. F. Veglio, F. Beolchini, “Removal of metals by biosorption: a review,” Hydrometallurgy, vol. 44, pp. 301-316, 1997.
• 3. M.P. Shah, S.B. Vora, S.R. Dave, “Evaluation of potential use of immobilized Penicillium griseofulvum in bioremoval of copper,” Process Metallurgy, vol. 9, pp. 227-235, 1999.
• 4. J.R. Rivers Singleton, “The Sulfate-Reducing Bacteria: An Overview”, The Sulfate-Reducing Bacteria: Contemporary Perspectives, J.M. Odom, J.R. Rivers Singleton, Eds., New York: Springer-Verlag, pp. 1-20, 1993.
• 5. B.M. Tebo, “Metal Precipitation by Marine Bacteria: Potential for Biotechnological Applications”, Genetic Engineering: Principles and Methods, J.K. Setlow, Ed., New York: Springer, pp. 231-263, 1995.
• 6. R.B. Herbert, S.G. Benner, A.R. Pratt, D.W. Blowes, “Surface chemistry and morphology of poorly crystalline iron sulfides precipitated in media containing sulfate-reducing bacteria,” Chem. Geol., vol. 144, pp.87-97, 1998.
• 7. J. Jenčárová, A. Luptáková, N. Vítkovská, D. Matýsek, P. Jandačka, “Magnetic sorbents biomineralization on the basis of iron sulphides,” Environ. Technol., vol. 39, pp. 2916-2925, 2018.
• 8. J.R. Postgate, “The sulphate-reducing bacteria,“ Cambridge: Cambridge University Press, pp. 208, 1984.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).

Identyfikatory

DOI

10.29227/IM-2024-01-74