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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”
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
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
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).
