Application of Algae Technology in Biogas Digestate Treatment and the Opportunity of Algal Biofertilizers in European Farms

G. Grassi & A. Salimbeni
Main objective of this paper is to briefly show a possible solution for manure anaerobic digestion effluent treatment through the addition of a photobioreactor for growing microalgae. The idea is to create a self sufficient system using the CO2 exhausted by the engine to feed bioreactor, and nutrient contained in the liquid fraction of digestate to increase the algae growth avoiding expensive treatment and drying systems. Core point of this analysis is the big advantage...