Turkish Journal of Computer and Mathematics Education
Journal license

Journal

Turkish Journal of Computer and Mathematics Education


Volume
& Issue

Volume 11, Issue 3


Published
on


Pages

1854-1860


DOI

Article

Hydrodynamic study of the Single-Stirred Membrane Filtration Module: A CFD-based approach


Authors

Keka Rana Affiliation:
Department of Chemical Engineering, Haldia Institute of Technology, Haldia, PurbaMedinipur, West Bengal, India
and Debasish Sarkar* Affiliation:
Department of Chemical Engineering, University of Calcutta, Kolkata 700 009, West Bengal, India


Abstract

Membrane based separation technologies are nowadays very often recommended over the traditional separation techniques because of their simple modular design, low power consumption, easy way handling, and hazard-free operation. A large number of membrane modules were proposed over time to suit for the specific operational requirement. For instance, the Dynamic Shear Enhanced membrane filtration units, which include Rotating Disk, Rotating Disk-Membrane, Vibratory Shear Enhanced Processing units, Multi-Shaft Disk, and many others, were introduced to generate feed flow independent high shear rate at the membrane surface to effectively alleviate the problems of concentration polarization and membrane fouling. The single-stirred cell, alternatively known as rotating disk device, is recognized as one of the baseline DSE modules. The design is pretty simple. The module is a dead-end unit with a flat disk stirrer placed close to the membrane surface. Imperatively, many experimental studies have been reported on the performance of the Dynamic Shear Enhanced filtration devices. Nevertheless, reports on the corresponding hydrodynamic analysis are quite rare. The present work demonstrates the fundamental hydrodynamic characteristics, such as the velocity field and the shear stress distribution, of a single-stirred cell using CFD. The k-ε realizable turbulent model was chosen to simulate this module. Analysis was based on the variation of transmembrane pressure and rotational velocity.


Keywords

Computational fluid dynamics, Concentration polarization, Fouling, Membrane separation, Single-stirred cell


Citation

Rana, K. & Sarkar, D. (2020). Hydrodynamic study of the single-stirred membrane filtration module: A cfd-based approach. Turkish Journal of Computer and Mathematics Education, 11(3), 1854–1860.

Published by: Engineering Journals

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