Microalgae cultivation for bioenergy production using wastewaters from a municipal WWTP as nutritional sources

► We applied wastewater from a municipal WWTP for microalgae cultivation. ► The isolates originated from an anaerobic digester grew without a lag period. ► The high ammonia concentration in anaerobic digester effluent should be diluted. ► The highest biomass productivity was obtained from a combined wastewater. ► The effluent of a 1st settling tank enhances separation between solid and liquid.