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Micro-macro transition for numerical simulation of submerged membrane bioreactor Cover

Micro-macro transition for numerical simulation of submerged membrane bioreactor

The EuroBiotech Journal
Volume 4 (2020): Issue 2 (April 2020)
By: Moutafchìeva Dessislava and  Iliev Veselin  
Open Access
|Apr 2020

Figures & Tables

Figure 1

Picture of the membrane.
Picture of the membrane.

Figure 2

Geometric model of the bubble column with membrane module.
Geometric model of the bubble column with membrane module.

Figure 3

Geometric model of the cell, created with a CAD modeler. (a – basic volume of the single-cell; b- the added volume of the fluid in front and behind the membrane)
Geometric model of the cell, created with a CAD modeler. (a – basic volume of the single-cell; b- the added volume of the fluid in front and behind the membrane)

Figure 4

Geometrical model of the fluid part for a different number of single cells.
Geometrical model of the fluid part for a different number of single cells.

Figure 5

The permeability of the membrane by simulation of one, two and four cells from the representative area of the membrane structure and for fluids with different viscosity.
The permeability of the membrane by simulation of one, two and four cells from the representative area of the membrane structure and for fluids with different viscosity.

Figure 6

The fluid flow depending on the viscosity.
The fluid flow depending on the viscosity.

Figure 7

Water volume fraction (a), gas holdup (b), water velocity (c) and air velocity (d) in bubble column at the numerical solution with superficial gas velocity 0,5 m/s and bubble diameter 3 mm.
Water volume fraction (a), gas holdup (b), water velocity (c) and air velocity (d) in bubble column at the numerical solution with superficial gas velocity 0,5 m/s and bubble diameter 3 mm.

Table 1

k(m2)Q (numerical)(m3/s)Q (Darsy’s law)(m3/s)
1.00 E-135.65 E-095.56 E-09
1.00 E-105.60 E-065.56 E-06
1.00 E-085.61 E-045.56 E-04
1.00 E-075.56 E-035.56 E-03
1.00 E-063.90 E-025.56 E-02
DOI: https://doi.org/10.2478/ebtj-2020-0009 | Journal eISSN: 2564-615X
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Language: English
Page range: 82 - 88
Published on: Apr 30, 2020
Published by: European Biotechnology Thematic Network Association
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
CFD simulation,
permeability,
submerged membrane reactors,
modeling
Related subjects:
Life sciences,
Genetics,
Biotechnology,
Bioinformatics,
Life sciences, other

© 2020 Moutafchìeva Dessislava, Iliev Veselin, published by European Biotechnology Thematic Network Association
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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