A low-cost and scalable process for harvesting microalgae using commercial-grade flocculant.

ABSTRACT: A low-cost and scalable harvesting process was demonstrated for Chlorella sp. FC2 IITG, which offered an improved process economy for the production of a microalgal biomass feedstock via (i) the utilization of a cheaper commercial grade chemical flocculant; (ii) the recycling of post-harvested nutrient-rich spent water for the successive growth of the FC2 cells and (iii) the modulation of the flocculant dose, resulting in the non-requirement of a pH adjustment of the spent water and separate inoculum development step. Ferrous sulphate and ferric chloride were screened from a pool of four commercial grade flocculants, resulting in high harvesting efficiencies of 99.83% and 99.93% at the lower flocculant doses (g of flocculant g of dry biomass^-1) of 2.5 and 3, respec

SUBMITTER: Goswami G 

PROVIDER: S-EPMC9076021 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature