2026-05-28T14:53:54Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/233182026-02-03T11:10:11Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Villén-Guzmán, María Dolores
author
Cerrillo-González, María del Mar
author
Paz-García, Juan Manuel
author
Rodríguez-Maroto, José Miguel
author
Arhoun, Brahim
2021-12-02T10:53:48Z
2021-12-02T10:53:48Z
2021
M. Villen-Guzman et al. Environmental Technology & Innovation 21 (2021) 101380
https://hdl.handle.net/10630/23318
https://doi.org/10.1016/j.eti.2021.101380
The valorization of agricultural waste as biosorbent requires studies dealing with aqueous systems containing coexisting heavy metals. Batch adsorption experiments were carried out to study the competitive biosorption of Ni(II) and Cd(II) on alkalimodified lemon peel. The biosorption kinetic analysis indicated that the uptake of Ni(II) on lemon peel was better described by pseudo first-order model whereas for Cd(II) results were no conclusive. A rapid uptake of both metals on alkali-modified lemon peel was detected during the first 10 min obtaining more than 90% of the maximum sorption. The maximum adsorption capacity of Ni(II) and Cd(II) for single metal systems at optimum conditions (pH = 5, S/L = 5 g L−1, 25 ◦C), which were obtained from Langmuir model, reached as high as about 0.626 and 0.726 mmol g−1, respectively.
These values were reduced 30 and 20 % in the presence of 100 mg L−1 of Cd and Ni, respectively. Regarding the reusability of the biosorbent, after five consecutives
adsorption–desorption cycles using HNO3 and H2SO4 as desorption reagents percentages of 90 and 70 % were recovered for Ni and Cd. The promising results obtained through
this work are expected to promote the use of lemon peel as an efficient biosorbent for industrial applications.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional Attribution-NonCommercial-NoDerivatives 4.0 Internacional Attribution-NonCommercial-NoDerivatives 4.0 Internacional Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Residuos agrícolas
Valorization of lemon peel waste as biosorbent for the simultaneous removal of nickel and cadmium from industrial effluents
journal article
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