Wasted sardine oil as a co-substrate for biogas production - pilot experiment of decentralized organic waste management in a pig farm

Abstract

The purpose of this work was to demonstrate in a commercial pig farm with a biogas plant and in real conditions, the possibilities to co-digest WSO and PS at farm level. Anaerobic digestion is one of the most adequate technologies to manage this type of industrial organic waste streams (Chowdhury et al., 2009), and the decentralized operations of organic waste management for biogas production have many advantages but also a number of uncertainties that must be evaluated (Weiland, 2006; Raven et al., 2007). Since it was the first time that in Portugal such an experience was done, the production of technical information to the veterinary authorities was a secondary goal.