naa a22 4500 510752322 CHVBK 20180411083109.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11270-012-1422-z doi (NATIONALLICENCE)springer-10.1007/s11270-012-1422-z Granulometry and Surfactants, Key Factors in Desorption and Biodegradation ( T [Elektronische Daten] versicolor ) of PAHs in Soil and Groundwater [P. Rodríguez-Escales, E. Borràs, M. Sarra, A. Folch] High hydrophobicity of polycyclic aromatic hydrocarbons (PAHs) is the most limiting factor for the remediation of polluted soils and aquifers. The present study analyzes the effect of three nonionic surfactants (Tween 80, BS-400, and Gold Crew) and the granulometry of soil (1%, 5%, 10%, and 20% of clay and silt) on desorption of a PAH mixture (fluorene, phenanthrene, anthracene, and pyrene). As a general trend, decrease of fine material content and increase of surfactant concentration raises desorption. However, some particularities have to be considered depending on granulometry together with the surfactant applied. Furthermore, increase of fine material content tends to reduce the importance of the PAH properties, e.g., K ow and solubility, in desorption. To complete the remediation process, biodegradation by Trametes versicolor was tested with the surfactant Tween 80. Results indicate that a high concentration of surfactant does not affect the efficiency of fungus bioremediation. Nevertheless, high fine material content in soil/aquifer can reduce the degradation rate. Moreover, desorption and biodegradation used synergically guarantee better overall results in the remediation of soils polluted by PAH mixtures than other methods that separate desorption and remediation. Springer Science+Business Media Dordrecht, 2013 Polycyclic aromatic hydrocarbons (PAHs) nationallicence Fine material nationallicence Remediation nationallicence Ligninolytic fungus nationallicence Rodríguez-Escales P. D'Enginy Biorem, Carrer Madrazo 68, 08006, Barcelona, Spain aut Borràs E. Departament d'Enginyeria Química, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut Sarra M. Departament d'Enginyeria Química, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut Folch A. Unitat de Geodinàmica Externa i Hidrogeologia, Departament de Geologia, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-12 0049-6979 224:2<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1422-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1422-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rodríguez-Escales P. D'Enginy Biorem, Carrer Madrazo 68, 08006, Barcelona, Spain aut NATIONALLICENCE 700 1- Borràs E. Departament d'Enginyeria Química, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut NATIONALLICENCE 700 1- Sarra M. Departament d'Enginyeria Química, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut NATIONALLICENCE 700 1- Folch A. Unitat de Geodinàmica Externa i Hidrogeologia, Departament de Geologia, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-12 0049-6979 224:2<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer