Effect of Backpulsing and Continuous Surface Cleaning on High-Shear Rotary Membrane System Permeate Flux Performance for Naval Shipboard Wastewaters
Publication: Journal of Environmental Engineering
Volume 140, Issue 4
Abstract
A laboratory investigation evaluated the effect of backpulsing (BP) and continuous surface cleaning (CSC) on high-shear rotary membrane system (HSR-MS) flux performance while treating three surrogate naval shipboard wastewaters (i.e., bilgewater, blackwater, and thermal destruction quench water) while also seeking to better understand the HSR-MS permeate flux-rotation-diameter () relationship. increased with , BP, and CSC. BP and CSC provided the most benefit at lower . Incorporating BP and CSC improved the inner area . A volumetric flow rate analysis conveyed the importance of disc diameter—the outer membrane area produced the majority of the total flow. Collectively, the results indicate that BP and CSC enhanced the standard HSR-MS flux performance at low by replacing the loss of or augmenting the rotationally induced shear. This conclusion supports HSR-MS operation at lower , which allows the use of larger disc diameters, providing an increase in performance per disc and a reduction in the number of membrane discs required.
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Published In
Journal of Environmental Engineering
Volume 140 • Issue 4 • April 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Apr 14, 2013
Accepted: Nov 25, 2013
Published online: Jan 23, 2014
Published in print: Apr 1, 2014
Discussion open until: Jun 23, 2014
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