Competitive adsorption of ibuprofen and amoxicillin mixtures from aqueous solution on activated carbons
This work investigates the competitive adsorption under dynamic and equilibrium conditions of ibuprofen (IBU) and amoxicillin (AMX), two widely consumed pharmaceuticals, on nanoporous carbons of different characteristics. Batch adsorption experiments of pure components in water and their binary mixtures were carried out to measure both adsorption equilibrium and kinetics, and dynamic tests were performed to validate the simultaneous removal of the mixtures in breakthrough experiments. The equilibrium adsorption capacities evaluated from pure component solutions were higher than those measured in dynamic conditions, and were found to depend on the porous features of the adsorbent and the nature of the specific/dispersive interactions that are controlled by the solution pH, density of surface change on the carbon and ionization of the pollutant. A marked roll-up effect was observed for AMX retention on the hydrophobic carbons, not seen for the functionalized adsorbent likely due to the lower affinity of amoxicillin towards the carbon adsorbent. Dynamic adsorption of binary mixtures from wastewater of high salinity and alkalinity showed a slight increase in IBU uptake and a reduced adsorption of AMX, demonstrating the feasibility of the simultaneous removal of both compounds from complex water matrices.
Main Authors: | Mansouri, Hayet, Jiménez Carmona, Rocío, Gomis Berenguer, Alicia, Souissi-Najar, Souad, Ouederni, Abdelmottaleb, Ovín Ania, María Concepción |
---|---|
Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2014-12
|
Subjects: | Competitive adsorption, Binary mixtures, Pharmaceuticals, Dynamic breakthrough experiments, Real wastewater, |
Online Access: | http://hdl.handle.net/10261/113467 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Predicting Mixed-Gas Adsorption Equilibria on Activated Carbon for Precombustion CO2 Capture
by: García López, Susana, et al.
Published: (2013-04) -
Fixed-bed performance of a waste-derived granular activated carbon for the removal of micropollutants from municipal wastewater
by: Jaria, G., et al.
Published: (2019) -
Isomerización de carbocianinas simétricas en solventes polares
by: Rusjan, Pablo -
Micro/nanoplastics effects on organisms: A review focusing on 'dose'
by: Agathokleous, Evgenios, et al.
Published: (2021-09-05) -
Preparation and evaluation of a coconut shell-based activated carbon for CO2/CH4 separation
by: Abdeljaoued, Amna, et al.
Published: (2018-07-03)