This paper deals with a preliminary study aimed at investigating the adsorption capacity of an innovative natural environmental friendly adsorbing material, consisting in an organo-zeolite, made by irreversibly binding humic acids onto natural zeolite. The removal of ibuprofen sodium salt, a non-steroidal anti-inflammatory drug among the most detected emerging contaminants into aquatic environments, was investigated by batch tests. Experiments were carried out under neutral pH and at a temperature of 25 Â°C. The kinetic and the equilibrium adsorption capacity were also investigated. Data show that a pseudo-second order rate equation can be used to describe the kinetics of Ibuprofen adsorption, while the equilibrium adsorption is adequately described by the Langmuir isotherm model. A comparison between the organo-zeolite and the raw zeolite shows that the adsorption capacity of the organo-zeolite was about 3 times higher than that of the raw material with a maximum amount can be adsorbed (qmax), extracted by Langmuir equation, of 0.205 mg gâ1 and 0.078 mg gâ1, respectively.
|Titolo:||Ibuprofen adsorption on organo-zeolite: Experimental and modelling analysis|
|Autori interni:||MUSMARRA, Dino|
|Data di pubblicazione:||2017|
|Rivista:||ADVANCED SCIENCE LETTERS|
|Appare nelle tipologie:||1.1 Articolo in rivista|