Effect of Ring Density on the Performance in a Tubular Ultrafiltration Membrane Inserted concentrically with a Ring Rod

Ho-Ming  Yeh; Miau-Ying  Shi

doi:10.6180/jase.2008.11.2.11

Effect of Ring Density on the Performance in a Tubular Ultrafiltration Membrane Inserted concentrically with a Ring Rod

Ho-Ming Yeh This email address is being protected from spambots. You need JavaScript enabled to view it.¹ and Miau-Ying Shi¹

¹Department of Chemical and Materials Engineering, Tamkang University, Tamsui, Taiwan 251, R.O.C.

Received: April 20, 2007
Accepted: August 23, 2007
Publication Date: June 1, 2008

Download Citation: ||https://doi.org/10.6180/jase.2008.11.2.11

ABSTRACT

The effect of hydraulic behavior on membrane ultrafiltration in a tubular module inserted concentrically with a steel rod wrapped by rings with various ring densities but uniform ring distance along the flow channel, was investigated. It is concluded that attaching rings with proper ring density on the solid rod inserted concentrically in a tubular membrane may enhance the performance of ultrafiltration due to the creation of turbulent flow, resulting in decrease of concentration polarization while still preserving the effective transmembrane pressure.

Keywords: Ultrafiltration, Ring-Rod Tubular Membrane, Ring Density, Permeate Flux

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