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The EuroBiotech Journal
Volume 4 (2020): Issue 2 (April 2020)
Open Access
Micro-macro transition for numerical simulation of submerged membrane bioreactor
Moutafchìeva Dessislava
Moutafchìeva Dessislava
and
Iliev Veselin
Iliev Veselin
| Apr 30, 2020
The EuroBiotech Journal
Volume 4 (2020): Issue 2 (April 2020)
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Article Category:
Research Article
Published Online:
Apr 30, 2020
Page range:
82 - 88
DOI:
https://doi.org/10.2478/ebtj-2020-0009
Keywords
CFD simulation
,
permeability
,
submerged membrane reactors
,
modeling
© 2020 Moutafchìeva Dessislava, Iliev Veselin, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Figure 1
Picture of the membrane.
Figure 2
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)
Figure 4
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.
Figure 6
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.
Table 1
k
(m
2
)
Q (numerical)
(m
3
/s)
Q (Darsy’s law)
(m
3
/s)
1.00 E-13
5.65 E-09
5.56 E-09
1.00 E-10
5.60 E-06
5.56 E-06
1.00 E-08
5.61 E-04
5.56 E-04
1.00 E-07
5.56 E-03
5.56 E-03
1.00 E-06
3.90 E-02
5.56 E-02