RT info:eu-repo/semantics/article
T1 Mechanistic description of convective gas–liquid mass transfer in biotrickling filters using CFD modeling
A1 Moreno Casas, Patricio
A1 Scott, Felipe
A1 Delpiano, José
A1 Abell, José A.
A1 Caicedo, Francisco
A1 Muñoz Torre, Raúl
A1 Vergara Fernández, Alberto
K1 Gas−liquid mass transfer
K1 Transferencia de masa gas-líquido
K1 Biotrickling filters
K1 Filtros biopercoladores
AB The gas–liquid mass transfer coefficient is a key parameter to the design and operation of biotrickling filters that governs the transport rate of contaminants and oxygen from the gas phase to the liquid phase, where pollutant biodegradation occurs. Mass transfer coefficients are typically estimated via experimental procedures to produce empirical correlations, which are only valid for the bioreactor configuration and range of operational conditions under investigation. In this work, a new method for the estimation of the gas–liquid mass transfer coefficient in biotrickling filters is presented. This novel methodology couples a realistic description of the packing media (polyurethane foam without a biofilm) obtained using microtomography with computational fluid dynamics. The two-dimensional analysis reported in this study allowed capturing the mechanisms of the complex processes involved in the creeping porous air and water flow in the presence of capillary effects in biotrickling filters. Model predictions matched the experimental mass transfer coefficients (±30%) under a wide range of operational conditions.
PB ACS Publications
SN 1520-5851
YR 2020
FD 2020
LK http://uvadoc.uva.es/handle/10324/46591
UL http://uvadoc.uva.es/handle/10324/46591
LA eng
NO Environmental Science & Technology, 2020, vol. 54, n. 1. p. 419–426
NO Producción Científica
DS UVaDOC
RD 24-nov-2024