A Post-Digestion, Fiber Treatment System for a Biogas Production Plant

Estimates of greenhouse gas reduction by digester treatment of dairy manure have shown that significant emissions remain in the post-digestion residue. A post-digestion, fiber treatment system for digester residue will be tested by modifying existing technologies. The system is expected to capture and process through a bio-filter nearly 100% of the emissions remaining in post-digester residue from manure. The system is an environmentally and economically sound alternative to composting anaerobic digester residue from manure management operations, and will be demonstrated with an operating dairy.