• Mirko Marinkovski
  • Stefan Kuvendziev
  • Katerina Atkovska
  • Flakrim Aliu
  • Erhan Mustafa
  • Shaban Jakupi
  • Peyman Ghaffari
  • Kiril Lisichkov
Keywords: Mn(II) ions, biosorbent, MATLAB, kinetic


In this article the possibility of removal of Mn (II)-ions from aqueous solutions with the use of grape branches as an adsorbent was investigated. For the realization of the set goal during the experimental investigations, the influence of the following operating parameters was examined: the initial concentration of Mn (II) ions in the solution (100-500 μg/dm3), the adsorption time (1-180 min) and the quantity of adsorbent (0.2-1 g), on the effect of the removal of Mn (II) ions and the adsorption capacity of the grape branches as an bisorbent. Experimental researches were carried out in batch laboratory conditions at room temperature (25 oC) and continuous mixing by magnetic stirrer at 600 rpm.
Based on the obtained results, the equilibrium of the examined system Mn (II) - grape branches was analyzed, using the Langmuir, Freundlich and Redlich-Peterson isotherms. By applying the MATLAB/Curve fitting Toolbox software, the equilibrium parameters for all applied adsorption systems are determined. The modeling of the kinetics of the process of removal of Mn (II) ions shown that the kinetic of the investigated system was defined by model of the pseudo-II order reaction.

Article Metrics


F. S. D. Sarifah, M. Norzila, I. W. Nor Hafiza, S. Z. Nurul and A. A. B. Nor Fatin, Adsorption of lead(II) ions in aqueous solution using selected agro-waste, Journal of Engineering and Applied Sciences, Vol.10(1), pp. 297-300, 2015

F. D. Oliveira, A. C. Soares, O. M. Freitas and S. A. Figueiredo, Copper, nickel and zinc removal by peanut hulls: batch and column studies in mono, tri-componet systems and with real effluent, Global NEST Journal, Vol. 12(2), pp. 206-214, 2010

R. Lucia, Z. Ondrej, S. Jana, M. Oldrich, S. Ivo and S. Mirka, Magnetically modified peanut husks as an effective sorbent of heavy metals, Journal of Environmental Chemical Engineering, Vol. 4, pp. 549-555, 2016

M. Mohammad, J. Nemat-Allah and H. Hiwa, Efficiency of perlite as a low cost adsorbent applied to removal of Pb and Cd from paint industry effluent. Deaslination and Water Treatment, Vol. 26(1-3), pp. 243-249, 2011

How to Cite
Marinkovski, M., Kuvendziev, S., Atkovska, K., Aliu, F., Mustafa, E., Jakupi, S., Ghaffari, P., & Lisichkov, K. (2019). BIOSORPTION OF Mn(II) IONS FROM WATER SOLUTIONS BY NATURAL SORBENT. KINETIC MODELING. Knowledge International Journal, 30(3), 525 - 530.