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Chemosphere

Title:		"Computational tomography and CFD simulation of a biofilter treating a toluene, formaldehyde and benzo[alpha]pyrene vapor mixture"
Author(s):		Moreno-Casas PA; Scott F; Delpiano J; Vergara-Fernandez A;
Address:		"Green Technology Research Group, Facultad de Ingenieria y Ciencias Aplicadas, Universidad de los Andes, Chile. Green Technology Research Group, Facultad de Ingenieria y Ciencias Aplicadas, Universidad de los Andes, Chile. Electronic address: aovergara@miuandes.cl"
Journal Title:		Chemosphere
Year:		2020
Volume:		20190925
Issue:
Page Number:		124924 -
DOI:		10.1016/j.chemosphere.2019.124924
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"In this work, a 3D computational tomography (CT) of the packing material of a laboratory column biofilter is used to model airflow containing three contaminants. The degradation equations for toluene, formaldehyde and benzo[alpha]pyrene (BaP), were one-way coupled to the CFD model. Physical validation of the model was attained by comparing pressure drops with experimental measurement, while experimental elimination capacities for the pollutants were used to validate the biodegradation kinetics. The validated model was used to assess the existence of channeling and to predict the impact of the three-dimensional porous geometry on the mass transfer of the contaminants in the gas phase. Our results indicate that a physically meaningful simulation can be obtained using the techniques and approach presented in this work, without the need of performing experiments to obtain macroscopic parameters such as gas-phase axial and radial dispersion coefficients and porosities"
Keywords:		"Air Pollutants/*chemistry Benzo(a)pyrene/*chemistry Biodegradation, Environmental Filtration/methods Formaldehyde/*chemistry Gases Toluene/*chemistry Tomography Tomography, X-Ray Computed Biofiltration Cfd Computational tomography Modeling Volatile organi;"
Notes:		"MedlineMoreno-Casas, Patricio A Scott, Felipe Delpiano, Jose Vergara-Fernandez, Alberto eng England 2019/11/16 Chemosphere. 2020 Feb; 240:124924. doi: 10.1016/j.chemosphere.2019.124924. Epub 2019 Sep 25"