Long-Term Assessment of the Nutrient Recovery Capacity and Biomass Productivity of Scenedesmus Almeriensis in Raceway Reactors Using Unprocessed Urban Wastewater

•Large-scale production of microalgal biomass in fresh and wastewater.•Comparable productivity and photosynthetic efficiency in the two systems.•Nutrient reduction under the European limitation for water discharge.•Study of the impacting process and environmental parameters on productivity.•Modeling the biomass productivity as function of temperature and irradiance.