Improving electrocoagulation floatation for harvesting microalgae.

ABSTRACT: Electro-coagulation floatation (ECF) is a foam-floatation dewatering method that has been shown to be a highly effective, rapid, and scalable separation methodology. In this manuscript, an in-depth analysis of the gas and flocculant levels observed during the process is provided, with microbubbles observed in the 5-80 μm size range at a concentration of 10²-10³ bubbles mL^-1. Electrolysis of microalgae culture was then observed, demonstrating both effective separation using aluminium electrodes (nine microalgal species tested, 1-40 μm size range, motile and non-motile, marine and freshwater), and sterilisation of culture through bleaching with inert titanium electrodes. Atomic force microscopy was used to visualise floc formation in the presence and absence

SUBMITTER: Landels A 

PROVIDER: S-EPMC6472293 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature