CFD analysis of fluid flow through a spacer-filled disk-type membrane module

The fluid flow through a spacer-filled disk-type membrane module was investigated using a computational fluid dynamics (CFD) technique. The properties of fluid flow through a membrane module depend on its geometry, in this case, the collection-tube size and the spacer thickness. This study focused on the influence of the geometry of the membrane module on the volumetric flow rate, permeate flux and the distribution of permeation rates in a spacer-filled disk-type membrane module. The numerical results showed that there were variations in the volumetric flow rate and permeation rates with differences in construction. The optimum permeate flux occurred with a collection-tube size of 15–20 mm and a spacer thickness of 0.75–1.00 mm. An understanding of the microscopic fluid flow in a membrane module based on CFD analysis could improve the design of collection tubes and spacers to enhance module performance and facilitate the construction of new designs.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► The fluid flow through a spacer-filled disk-type membrane module was analyzed using a computational fluid dynamics (CFD) technique. ► The main application of the newly designed module is especially for wastewater treatment as an element of membrane bioreactor. ► The optimum design of the disk-type membrane module has been achieved through the CFD approach.