High-Rate Algal Ponds: Treatment of Wastewaters and Protein Production: IV – Chemical Composition of Biomass Produced from Swine Wastes

Abstract

Swine wastes from swine breeding installations were treated in a pilot system of high rate algal ponds, and the Albazod biomass produced was harvested by autoflocculation and centrifugation. The chemical composition of Albazod biomass was determined in order to evaluate the potential of Albazod for utilization as a protein supplement to animal feed. The most important component in the Albazod biomass was crude protein and it varies according to detention time (there is an increase of crude protein when the detention time decreases). Besides the high protein content (for 3 days of detention time we have obtained 41.46% of dry matter for crude protein), the Albazod biomass is rich in minerals, which will enhance its potential as a favourable ingredient for animal feed.