RT Journal Article
T1 Removal of the highly toxic anticoccidial monensin using six different low-cost bio-adsorbents
A1 Hamdi, Samiha
A1 Issaoui, Manel
A1 Hammami, Sonia
A1 Míguez González, Ainoa
A1 Cela Dablanca, Raquel
A1 Barreiro Buján, Ana
A1 Núñez Delgado, Avelino
A1 Álvarez Rodríguez, Esperanza
A1 Fernández Sanjurjo, María J.
K1 Bio-adsorbents
K1 Ionophore antibiotics
K1 Monensin
K1 Natural barks
K1 Natural fibers
AB The anticoccidial monensin (MON) is a high-concern emerging pollutant. This research focused on six low-cost bio-adsorbents (alfa, cactus, and palm fibers, and acacia, eucalyptus, and zean oak barks), assessing their potential for MON removal. Batch adsorption/desorption tests were carried out, and the results were fitted to the Freundlich, Langmuir, Linear, Sips, and Temkin models. The concentrations adsorbed by the six materials were very similar when low doses of antibiotic were added, while they differed when adding MON concentrations higher than 20 µmol L−1 (adsorption ranging 256.98–1123.98 μmol kg−1). The highest adsorption corresponded to the sorbents with the most acidic pH (<5.5) and the highest organic matter and effective cation exchange capacity values (eucalyptus bark and acacia bark, reaching 92.3% and 87.8%), whereas cactus and palm fibers showed the lowest values (18.3% and 10.17%). MON desorption was below 8.5%, except for cactus and palm fibers. Temkin was the model showing the best adjustment to the experimental data, followed by the Langmuir and the Sips models. The overall results indicate that eucalyptus bark, alfa fiber, and acacia bark are efficient bio-adsorbents with potential for MON removal, retaining it when spread in environmental compartments, reducing related risks for human and environmental health.
PB MDPI
SN 2305-6304
YR 2024
FD 2024
LK https://hdl.handle.net/10347/38502
UL https://hdl.handle.net/10347/38502
LA eng
NO Hamdi, S., Issaoui, M., Hammami, S., Míguez-González, A., Cela-Dablanca, R., Barreiro, A., Núñez-Delgado, A., Álvarez-Rodríguez, E., & Fernández-Sanjurjo, M. J. (2024). Removal of the Highly Toxic Anticoccidial Monensin Using Six Different Low-Cost Bio-Adsorbents. Toxics, 12(8), 1-23. https://doi.org/10.3390/toxics12080606
NO This research was funded by Spanish “Agencia Estatal de Investigación” (State Investigation Agency) [grant number PID2021-122920OB-C21] and the Tunisian Ministry of Higher Education and Scientific Research.
DS Minerva
RD 24 abr 2026