The energy-intensive dewatering of algae biomass, the first step of most downstream
processes, remains one of the big challenges for economically relevant photoautotrophic
bioprocesses. Due to its scalability and easy construction, froth flotation using the
interactions between cells and bubbles shows considerable potential for this type of cost-
efficient initial dewatering step. Comprehensive knowledge on both the physico-chemical
conditions and the cellular surface properties are an important precondition to harvest cells …