Anaerobic digestion may be a viable manure treatment and handling method for dairy farms. This process produces renewable energy, helps to control water pollution, reduces odors, and reduces the emissions of greenhouse gases. Methane production and then the irrigation of the odorless effluent through irrigation systems during the growing season is a method of manure handling that has a beneficial impact on the environment. These systems combined with a nutrient management plan (NMP) will also improve neighbor relations and will help provide for sustainable development of the dairy industry. For an overview of AD see: Anaerobic Digestion on a Dairy Farm: Overview
What is anaerobic digestion?
- Anaerobic digestion is the breakdown of complex organic material by microorganisms in the absence of oxygen. The end products are methane, carbon dioxide, some trace gases, and stabilized organic matter.
What is digested?
- Dairy Manure
- Food Waste
What is produced?
- Methane Gas
What are the benefits of digestion?
- Benefits of Anaerobic Digestion on Farms
- Reduction of Greenhouse Gas Emissions
- Odor Reduction
- Improvement of Water Quality
- Generation of Renewable Fuel/Energy
- Conservation and Utilization of Crop Nutrients
- Revenue Potential
- Pathogen Reduction
What are the challenges?
- Successful operation of the system on-farm
- The economic value of generated power
Anaerobic Digestion General Resources
- Anaerobic Digestion in the U.S.
- Overview of Anaerobic Digestion Systems for Dairy Farms
- Fundamentals of Anaerobic Digestion of Dairy Manure: background
- Fundamentals of Anaerobic Digestion of Dairy Manure: advantages and disadvantages
- Analyzing Anaerobic Digesters – What is Destroyed and What is Produced
- Capitalizing on Energy Opportunities on New York Dairy Farms
Curt Gooch and Jennifer Pronto
- Reduction of Selected Pathogens in Anaerobic Digestion
Peter Wright, S. Inglis, S.M. Stehman, J. Bonhotal
- New Revenue for Digesters: The Renewable Fuel Standard and Low Carbon Fuel Standard
- Anaerobic Digestion for Energy and Pollution Control
- Integrating Anaerobic Digestion and Nutrient Separation: A Synergistic Partnership