XVIII World Water Congress

Utilization of poultry manure wastewater by mixotrophic cultivation of microalga Auxenochlorella protothecoides

Objectives

Auxenochlorella protothecoides was cultivated in poultry manure extract supplemented with sodium acetate in order to simulate a volatile fatty acid (VFA) rich substrate after PM thermophilic anerobic fermentation. Valorization of the agricultural wastes or byproducts into added-value products would prevent aquifer depletion and promote circular bioeconomy. The aim was to evaluate the effect of different VFA concentrations (0-30g/L) under mixotrophic conditions on biomass productivity, nutrient removal efficiency as well as on biochemical composition.