The ramps allow the mass culture of microalgae in a circulating pool. It is an open growing systems for microalgae (exposed to natural sunlight), operating on the penthouse principle. The suspension of microalgae is running in a thin layer on a tilted outer surface where the agitation and liquid / gas exchanges are being insured by the turbulence created by the battens.
Ten tubular photo-bioreactors (vol. 1 L) equipped with a control system of gas mixture (air/CO2) in air-conditioned room in the laboratory of Bioenergetics.