Pilot scale microalgae harvesting by a membrane: cross flow vs. submerged membrane


Ermis H., Koyuncu İ. , Altınbaş M.

DESALINATION AND WATER TREATMENT, vol.211, pp.391-398, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 211
  • Publication Date: 2021
  • Doi Number: 10.5004/dwt.2021.26365
  • Title of Journal : DESALINATION AND WATER TREATMENT
  • Page Numbers: pp.391-398

Abstract

Harvesting microalgal biomass is a major challenge because of their small size, their density, and their low concentration in the culture medium. Thus, the energy inputs to the cultivation/harvesting processes are high, and often exceed the energy content of the microalgal biomass itself. In this study, the cross-flow membrane and submerged membrane systems were installed to raceway ponds, and the harvesting yields were compared. The highest algal concentration reached by submerged membrane system which was 10.44 g/L; and by cross-flow membrane system maximum biomass reached was 6.99 g/L, which corresponds to concentrate 6 and 4.2 fold, respectively.