Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11841
Title: Numerical simulation of air flow through a biofilter with heterogeneous porous media
Authors: Yan, WW
Liu, Y 
Xu, YS
Yang, XL
Keywords: Biofilter
Lattice Boltzmann simulation
Porous flow
Issue Date: 2008
Publisher: Elsevier
Source: Bioresource technology, 2008, v. 99, no. 7, p. 2156-2161 How to cite?
Journal: Bioresource technology 
Abstract: Based on the ideal biofilter model, numerical simulation using lattice Boltzmann method is carried out to investigate the effect of Darcy number and porosity on removal efficiency of low headloss biofilter. The generalized Navier-Stokes model (Brinkman-Forchheimer-extended Darcy model) is applied making several assumptions. It is found that the Darcy number has determinant influence on the removal efficiency, and the effect of porosity on removal efficiency is very weak at lower Darcy numbers but very strong at higher Darcy numbers. It was found there was strong evidence of flow heterogeneity in the biofilter (Chitwood, D.E., Devinny, J.S., Reynolds Jr., F.E., 1999. Evaluation of a two-stage biofilter for treatment of POTW waste air. Environ. Prog. 18, 212-221). In this study we have found the biofilter performance can be improved by adjusting local Darcy number of the porous media in the biofilter.
URI: http://hdl.handle.net/10397/11841
ISSN: 0960-8524
EISSN: 1873-2976
DOI: 10.1016/j.biortech.2007.05.038
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