Optimization of patterned polysulfone membranes for microalgae harvesting.

Bioresour Technol

Membrane Technology Group (MTG), Division cMACS, Faculty of Bio-Science Engineering, KU Leuven, Celestijnenlaan 200F, PO Box 2454, 3001 Leuven, Belgium. Electronic address:

Published: August 2020

Membranes with a wave pattern on the membrane surface are now proposed for the first time to alleviate microalgal fouling and increase the membrane flux. The membrane morphology was observed via scanning electron microscope, and the clean water permeance, microalgae harvesting efficiency and membrane flux in a real broth were determined to investigate the effects of polysulfone (PSF) and polyethylene glycol (PEG) concentrations in the membrane casting solution. Furthermore, the influence of the height of the patterned waves and the inter-pattern distance on the fouling prevention were investigated. Higher PSF and PEG concentrations resulted in better pronounced patterns. Patterned membrane showed higher fluxes and critical pressures than the corresponding flat membranes. Larger patterns gave higher membrane fluxes and less fouling. Computational fluid dynamics simulation showed a higher velocity and shear on the pattern apexes.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.biortech.2020.123367DOI Listing

Publication Analysis

Top Keywords

microalgae harvesting
8
membrane flux
8
peg concentrations
8
membrane
7
optimization patterned
4
patterned polysulfone
4
polysulfone membranes
4
membranes microalgae
4
harvesting membranes
4
membranes wave
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!