Volume 15 Number 2 (2024)
IJESD 2024 Vol.15(2): 104-109
doi: 10.18178/ijesd.2024.15.2.1474

Influence of Chlorella Vulgaris Microalgae on the Adsorption of Pb and Zn in Leachates at El Porvenir Open-Air Dump— “El Tambo”

Mayly Zegarra Jara*, Anthonela Eulogio Barja, Melina Vila Molina, and Steve Camargo Hinostroza
School of Environmental Engineering, Faculty of Engineering, Universidad Continental, Huancayo, Junín, Peru
Email: 72976301@continental.edu.pe (M.Z.J.); 70236499@continental.edu.pe (A.E.B); 71316390@continental.edu.pe (M.V.M.); scamargo@continental.edu.pe (S.C.H.)
*Corresponding author
Manuscript received April 7, 2023; revised on June 6, 2023; accepted October 26, 2023, published April 26, 2024

Abstract—The application of Chlorella vulgaris microalgae in the adsorption of heavy metals is an economical and very efficient method. Being negatively charged, the heavy metals have a high affinity with polyvalent metal ions. The adsorption capacity of Zinc (Zn) and Lead (Pb) found in the leachate was studied taking into account the biomass production indices of the microalgae. In order to evaluate its adaptability in the environment, a pilot test was carried out with 2 samples: MP01 consisting of 3 L of leachate + 100 mL of Chlorella vulgaris; MP02 consisting of 3L of leachate + 200 mL of Chlorella vulgaris. The results of the pilot test showed that the leachate concentration was unfavorable for its growth; for this reason, it was decided to carry out a second experimental test with a dilution of 1:3, thus creating the necessary conditions for its growth. M01 made up of 3 L of dilution + 250 mL of Chlorella vulgaris and M02 made up of 3 L of dilution + 500 mL of Chlorella vulgaris. The results indicated that M02 presented better adaptability in the dilution; Regarding the adsorption of Pb, M01 presented an absorption of 72.09% and M02 reached an adsorption of 53.40%. For Zn adsorption, M01 had an adsorption of 88.98% and M02 reached an adsorption of 94.13%. It is concluded that the Chlorella vulgaris microalga can adapt to the leachate in a 1:3 dilution and with an optimal concentration of 500 mL, it is also significantly effective in the adsorption of Zn and Pb.

Keywords—adsorption, leachate, heavy metals, chlorella vulgaris microalgae

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Cite: Mayly Zegarra Jara, Anthonela Eulogio Barja, Melina Vila Molina, and Steve Camargo Hinostroza, "Influence of Chlorella Vulgaris Microalgae on the Adsorption of Pb and Zn in Leachates at El Porvenir Open-Air Dump— “El Tambo”," International Journal of Environmental Science and Development vol. 15, no. 2, pp. 104-109, 2024.

Copyright © 2024 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).





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  • ISSN: 2010-0264 (Print); 2972-3698 (Online)
  • Abbreviated Title: Int. J. Environ. Sci. Dev.
  • Frequency: Bimonthly
  • DOI: 10.18178/IJESD
  • Editor-in-Chief: Prof. Richard Haynes
  • Managing Editor: Ms. Cherry L. Chen
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