ELIMINACIÓN DE CONTAMINANTES EMERGENTES DEL AGUA MEDIANTE ADSORCIÓN SOBRE MATERIALES DE CARBÓN ACTIVADOS.
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2020-10-15
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Jaén: Universidad de Jaén
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El objetivo de este trabajo ha sido estudiar la eliminación del antibiótico amoxicilina de disoluciones acuosas mediante su adsorción sobre materiales de carbón activados. Los carbones activados, comerciales y obtenidos en el laboratorio, se caracterizaron por diferentes técnicas experimentales. A continuación, se lleva a cabo el estudio de la adsorción en régimen estático determinando las cinéticas e isotermas de adsorción, así como el efecto de la naturaleza química de la disolución sobre la adsorción (pH y temperatura). Los resultados obtenidos se relacionan con las características texturales y químicas de los carbones activados y con las propiedades físico-químicas del adsorbato. Los resultados muestran que la adsorción del antibiótico por los carbones activados presenta un carácter endotérmico y que la mayor capacidad de adsorción está relacionada con la mayor área superficial y porosidad de los adsorbentes. Finalmente, la adsorción de la amoxicilina por los carbones activados depende del pH de la disolución.
The aim of this work was to study the removal of the antibiotic amoxicillin from aqueous solutions by adsorption on activated carbon materials. For that, activated carbons, commercial and those obtained in the laboratory, were characterized by different experimental techniques. We carry out the adsorption study under static conditions by determining the adsorption kinetics and the adsorption isotherms, and the study of the chemical nature effect of the solution on adsorption (pH and temperature). Results obtained are related with the textural and chemical characteristics of the activated carbons, and with the physico-chemical properties of the adsorbate. The results found show that the adsorption of the antibiotic by activated carbons presents an endothermic character and the greater adsorption capacity is related with the larger surface area and more developed porosity of the adsorbents. Finally, amoxicillin adsorption by activated carbons depends on solution pH.
The aim of this work was to study the removal of the antibiotic amoxicillin from aqueous solutions by adsorption on activated carbon materials. For that, activated carbons, commercial and those obtained in the laboratory, were characterized by different experimental techniques. We carry out the adsorption study under static conditions by determining the adsorption kinetics and the adsorption isotherms, and the study of the chemical nature effect of the solution on adsorption (pH and temperature). Results obtained are related with the textural and chemical characteristics of the activated carbons, and with the physico-chemical properties of the adsorbate. The results found show that the adsorption of the antibiotic by activated carbons presents an endothermic character and the greater adsorption capacity is related with the larger surface area and more developed porosity of the adsorbents. Finally, amoxicillin adsorption by activated carbons depends on solution pH.