What are Biodigesters?

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Biodigesters take organic waste material – whether it’s the leftovers of a school lunch, the solid grains used to make distilled bourbon, or wastewater at a treatment plant – and use it to create renewable energy.

How is this possible?

Decaying waste materials naturally produce gas, most of which is methane. Biodigesters efficiently accelerate the decaying of organic waste and collect the methane to make energy. The solids that are left over make great fertilizer too!

Harvesting Biogas


  • Feedstock is loaded into a sealed module and digested on an anaerobic basis
    • Liquid (the “percolate”) containing methane-producing microbes is continuously recirculated throuught the biomass and into the reactor tank for biogas generation
  • Biogas is harvested, filtered and piped into the existing gas distribution system
  • After the conclusion of the methane production period, the biomass (the “digestate”) is composted within the same module
    • The digestate is never exposed to the environment
    • Air is drawn into the modules creating ideal aerobic conditions
    • The digestate is converted into a high quality compost and soil amendment

Click here to learn more about how Biodigesters work.