Numerical simulation of air flow through a biofilter with heterogeneous porous media

Wei Wei Yan; Yang Liu; You Sheng Xu; Xiang Long Yang

doi:10.1016/j.biortech.2007.05.038

Numerical simulation of air flow through a biofilter with heterogeneous porous media

Wei Wei Yan, Yang Liu, You Sheng Xu, Xiang Long Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2156-2161
Number of pages	6
Journal	Bioresource Technology
Volume	99
Issue number	7
DOIs	https://doi.org/10.1016/j.biortech.2007.05.038
Publication status	Published - 1 May 2008

Keywords

Biofilter
Lattice Boltzmann simulation
Porous flow

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.biortech.2007.05.038

Cite this

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title = "Numerical simulation of air flow through a biofilter with heterogeneous porous media",

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.",

keywords = "Biofilter, Lattice Boltzmann simulation, Porous flow",

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T1 - Numerical simulation of air flow through a biofilter with heterogeneous porous media

AU - Yan, Wei Wei

AU - Liu, Yang

AU - Xu, You Sheng

AU - Yang, Xiang Long

PY - 2008/5/1

Y1 - 2008/5/1

N2 - 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.

AB - 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.

KW - Biofilter

KW - Lattice Boltzmann simulation

KW - Porous flow

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Numerical simulation of air flow through a biofilter with heterogeneous porous media

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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