Biofuel production using algal biomass calls a great interest in
many research teams. Among the numerous species, phototrophic
microalgae are certainly attractive, whose needs for growth are
light, carbon dioxide and some quantity of mineral substances.
These are very important factors in biofuel production. The
biomass concentration in a bioreactor depends on its type. Thus,
it may be up to 0.5 g/l in open reactors, and up to 5 g/l in closed
systems (Vandamme et al., 2013). Therefore, the requirement for
microalgae recovery is to somehow remove a significant amount
of water (Schlesinger et al., 2012), which definitely entails more
power consumption when the microalgae are conditioned for
processing.