ADOPT (Anaerobic Disgestion Optimizer)

Economic Modeling Tool

Economic issues work in progress:

• Considering the volume and nutrient composition of each dairies’ contributing waste stream and the additional feedstocks determine how best to reallocate lagoon effluent nutrients relative to: meeting crop needs, soil tests, and redistribution capacity constraints.
• Redistribution of lagoon effluent & compost:
  1. Crop needs, soil tests, application timing, environmental considerations and redistribution pumping capacity.
  2. Contributing dairy farms want to maximize crop yield and minimize/eliminate commercial fertilizer cost.
     
  3. Apply as much lagoon effluent as possible subject to soil test information.
  4. Reallocation rules:
     • Volume and nutrient value contributed
     • Banking rule: deposits = withdrawals
     • “Share” return feedstock contribution
     • Compost: need to develop market
     • Nutrient testing throughout the AD system