By: Keka Rana and Debasish Sarkar
Haldia Institute of Technology, Haldia, India
Historically Crossflow Membrane modules came first in the membrane-based separation (MBS)
process. Its high shear generation overcomes two non-idealities concentration polarization and
subsequent fouling. Primarily, high shear generation and large surface area create a positive domain
for large applications. Thereafter, feed flow rate-dependent shear generation creates a hindrance.
This obstruction is overcome with Dynamic Shear Enhanced Membrane Filtration Pilot (DSEMFPs).
Low surface area is a vital drawback of DSEMFPs. This radial flow membrane module with its
special design develops a large surface area. Moreover, its central inlet and nine peripheral outlets
reduce the large pressure drop efficiently. With all the positive properties it efficiently removes the
protein from waste water. Moreover, it can work satisfactorily on plenty of wastewater treatment
processes. Therefore, a detailed hydrodynamic study of the radial flow module is the primary
requirement. The absence of it makes a prominent path for further investigation. Considering the
importance of shear, shear stress distribution on the membrane surface is studied here. Moreover,
exact velocity vector distribution in the default interior is also vital to understanding the inner
hydrodynamic relationship. Additionally, vortices, turbulent kinetic energy, turbulent KE dissipation
rate, and dynamic pressure on the membrane surface are also reported in this study for a complete
understanding of the exact condition of the membrane surface. All these results justify the positive
impact of the Radial flow system in wastewater treatment.
Citation:
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