Influence of ozonation processes on the microbial degradation of surfactants
Metadatos
Afficher la notice complèteAuteur
Lechuga Villena, Manuela María; Fernández Serrano, Mercedes; Jurado, E; Fernández Arteaga, Alejandro; Burgos, A.; Ríos, F.Editorial
Elsevier BV
Materia
Ozonation Non ionic surfactants Biodegradation Pseudomonas putida Amine oxide based surfactants
Date
2012-08Referencia bibliográfica
Lechuga, M., Fernández-Serrano, M., Jurado, E., Fernández-Arteaga, A., Burgos, A., & Ríos, F. (2012). Influence of ozonation processes on the microbial degradation of surfactants. Procedia Engineering, 42, 1038-1044.
Résumé
The influence of ozonation of aqueous solutions of non-ionic surfactants was investigated in this study. The research
was conducted using solutions of amine oxide based surfactants. These surfactants constitute a particular class of
non-ionic surfactants that exhibit cationic behaviour in acid solution, they show good foaming properties and are skin
compatible. The ozonation process was carried out at 25ºC in a stirred tank reactor for 30 min, where gaseous ozone
was bubbled. The degree of mineralization achieved after the ozonation process was evaluated by measuring the total
organic carbon before and after ozonation. The influence of ozonation on biodegradability of the solutions was
studied using the biodegradation test by Pseudomonas putida. Biodegradation efficiency of the ozonated amine
oxides based surfactants was also evaluated. It was found that the effectiveness of ozonation depended on the
chemical structure of surfactant molecule. Ozonation only slightly improved biodegradation of these surfactants.