Algal Biomass Processing Via Shear-Enhanced Membrane Separation For The Production Of Biofuels

Shear enhanced membrane filtration has been evaluated for algal biomass dewatering, a downstream step in the production of biofuels and bioproducts. Microfiltration membranes have been evaluated for the separation of dissolved Chlorella Vulgaris, a potential feedstock for biodiesel production. Shear-enhanced cross-flow membrane filtration processes decrease fouling and improve flux, when compared to traditional cross-flow filtration. Shear-enhanced by a vibratory field provides a greener alternative to conventional systems, as high values of flux and separation efficiency can be maintained and the biomass can be effectively concentrated. Studies to evaluate the effect of algae feed concentration, trans-membrane pressure, and shear rate on permeate flux were performed. The integration of vibratory field membrane separation into an overall design for the dewatering of algal biomass can result in a more sustainable, greener system.