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Animal manure is often utilized by the American agriculture industry as fertilizer without considering the potential energy production. It is well established that on-farm anaerobic digestion (AD) can be effective in providing energy, reducing greenhouse gas emissions, and controlling air and water pollutions. Knowledge of the ADs on biogas production, digested and stored manure nutrients, and air emissions must reach parties of interest. A modular, pilot-scale, mesophilic AD system is being installed for the new swine finishing facility at University of Missouri-Columbia Research Farm.
Ähnlich wie Design, Construction and Implementation of a Pilot Scale Anaerobic Digester at the University of Missouri-Columbia’s Swine Teaching and Research Farm
Ähnlich wie Design, Construction and Implementation of a Pilot Scale Anaerobic Digester at the University of Missouri-Columbia’s Swine Teaching and Research Farm (20)
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Design, Construction and Implementation of a Pilot Scale Anaerobic Digester at the University of Missouri-Columbia’s Swine Teaching and Research Farm
1. Design, Construction and
Implementation of a Pilot Scale
Anaerobic Digester at the University
of Missouri’s Swine Teaching and
Research Farm
By:
Brandon Harvey
Research Assistant, Agricultural Systems Management
Teng Lim
Assistant Professor, Agricultural System Management
Kevin Rohrer
Engineer, Martin Machinery
2. Purpose of Project
• Establish a pilot scale, on-farm anaerobic digester
– Potential Renewable Energy Production
– Manure Management
– Economic Viability
– Odor Control
3. Purpose of Project
• Research will provide information for small to medium
sized farms seeking:
– Viable energy alternatives
– Practical manure management practices
– Air quality improvements
4. University of MO-Swine Farm
Located approx. 5 miles
from campus
Consist of 2 barns
-Research
-Teaching
West - trailer court
East- several homes
South- University Farm
North- Undeveloped land
5. Construction Details
• Finishing Barns
• Valve Control & Manhole
• Dual Tank Design
• Heat Exchanger
• Gas Systems
• Water Heaters
• Control Panels
6. Finishing barns
Chopper pump
Scraper
system
Existing
Lagoon
Modified
water heater
Back-up natural
gas heater
Positive
displacement
pumpManhole
Mixing
tank
Digester
2
Digester
1
Biogas
Bladder
Condensate
Trap
Shelter
Flare
Valve Control Box
Radiant Heat
Pressure
relief
Flow meter
Mixing
tank
Iron
Sponge
Heat
Exchanger
Anaerobic Digester System
7. Finishing barns
Finishing Barns
• 136’*42’ finishing barn
• 85 Hogs per room (50-250 lbs.)
• 1.1 gallon/day manure per hog
• 8’ deep pit
• Plug flow system
8. Finishing barns
Chopper pump
Scraper
system
Existing
Lagoon
Modified
water heater
Back-up natural
gas heater
Positive
displacement
pumpManhole
Mixing
tank
Digester
2
Digester
1
Biogas
Bladder
Condensate
Trap
Shelter
Flare
Valve Control Box
Radiant Heat
Pressure
relief
Flow meter
Mixing
tank
Iron
Sponge
Heat
Exchanger
Anaerobic Digester System
9. Valve Control & Manhole
Chopper pump
Manhole
Valve Control Box
10. Finishing barns
Chopper pump
Scraper
system
Existing
Lagoon
Modified
water heater
Back-up natural
gas heater
Positive
displacement
pumpManhole
Mixing
tank
Digester
2
Digester
1
Biogas
Bladder
Condensate
Trap
Shelter
Flare
Valve Control Box
Radiant Heat
Pressure
relief
Flow meter
Mixing
tank
Iron
Sponge
Heat
Exchanger
Anaerobic Digester System
15. Gas Bladder
•Biogas rated plastic
•12’*15’*5’ inflated
•Housed in wooden
structure
•Weighted to maintain line
pressure
16. Finishing barns
Chopper pump
Scraper
system
Existing
Lagoon
Modified
water heater
Back-up natural
gas heater
Positive
displacement
pumpManhole
Mixing
tank
Digester
2
Digester
1
Biogas
Bladder
Condensate
Trap
Shelter
Flare
Valve Control Box
Radiant Heat
Pressure
relief
Flow meter
Mixing
tank
Iron
Sponge
Heat
Exchanger
Anaerobic Digester System
17. Water Heaters
Biogas
water heater
Back-up natural
gas heater
•1 Hog produces 2000 BTU of methane per day
•2000 BTU*170 hogs= 340,000 BTU/40000 = 8.5 hrs.
•Natural gas to supplement when needed
22. Future Plans
• Currently
– Awaiting startup (May 1, 2013)
– Awaiting manure VSS test to determine loading
rate
– Awaiting system test trails
23. Future Plans
• Improved design efficiency of heat-exchanger
• Effects of feedstock characteristics
• Co-digestion
• Feedstock pre- treatment on biogas
production
• Characterizing greenhouse gas emissions from
untreated manure and AD- treated manure
24. Summary
• Purpose of Project
• Project Design/Construction
• What was learned
• Future Plans
25. Acknowledgements
MU- College of Agriculture, Food and Natural Resources
MU- Commercial Agriculture Program
Dr. Tim Safranski
Dr. Joe Zulovich
University Field Operations