Anaerobic Digestion

What is Anaerobic Digestion?

The decomposition of organic waste naturally produces biogas. When captured, the methane recovered from the biogas is processed, using a closed anaerobic digestion system. Micro-organisms "feed" on the collected waste in the digester system, which is devoid of oxygen, resulting in the production of biogas. The biogas is combusted to produce electricity and can also be further processed to produce heat and fuel sources.


This technology is being used today to help farms convert livestock manure, food and agricultural waste into clean energy sources. In addition to managing waste, greenhouse gas emissions are reduced as well as odor. Another benefit is the by-product of pathogen free solids which can be used for dairy bedding, spread on farmland or used for other products. The liquid is commonly used as fertilizer.

Advantages of Anaerobic Digestion

  • Produces renewable biogas energy; electricity, heat, and fuel sources

  • Reduces operating costs

  • Sustainable management of organic waste

  • Odor suppression

  • By-product solids can be turned into nutrient rich compost and organic fertilizer or farm animal bedding

  • Potential income opportunities taking in waste for processing or selling fertilizer and bedding 

  • Diverts large amounts of landfill waste, reducing emissions of greenhouse gases

  • Reduces fossil fuel use and environmental impacts

Aegis Renewable Energy, Inc.

340 Mad River Park, Suite 6

Waitsfield Vermont 05673


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