Retrofit Existing Industrial Digester(s) to Triple its Capacity

Omnivore Retrofit | Municipal Wastewater | California, USA
Retrofit Existing Industrial Digester(s) to Triple its Capacity

Omnivore™ is an advanced high solids approach to the anaerobic digestion of wastewater and nutrient recovery which incorporates Anaergia’s intelligent mixing and robust thickening systems to triple the capacity of an existing wastewater digester (typically 2 to 3%) into a high-solids Omnivore™ digester (5 to 8%).

Low Footprint for new Digesters: Reduce requirements of new digester construction to 1/3 of the volume and footprint required by a traditional food waste digester system, reducing CAPEX and associated OPEX.

Co-Digestion Made Easy: Omnivore™ improves nutrient recovery from wastewater, by better enabling co-digestion of local organic waste streams, generating additional revenue, and making plants producers of clean energy. Omnivore™ unlocks digestion capacity in existing digesters which can be used to co-digest not only fats, oils, and grease but also local organic streams like food processing waste, Source Separated Organics and organic fraction of municipal solid waste which was prepared and treated by Anaergia’s Organic Extrusion Press (OREX™).

Improved Performance: Omnivore™ offers operational control and flexibility. Easy maintenance includes the ability to adjust the mixer position to break up floating layers and re-suspend grit, and access without taking a wastewater digester out of service.

Dufferin Organics Processing Facility | Toronto, Canada


  • 3x existing digestion capacity in the same footprint.
  • Reduce requirements of new digester construction to 1/3 of the volume and footprint required by traditional digesters.
  • Reduced CAPEX and lifecycle costs.
  • Ability to clean digesters by breaking up floating layers and re-suspending grit.
  • Easy wastewater digester operation and maintenance.
  • Enables co-digestion and nutrient recovery from multiple feedstocks.
  • High operational control and flexibility.


  • Enhance digestion capacity in existing municipal wastewater treatment facilities.
  • Anaerobic digestion of wastewater with reduced footprint for new plants.
  • Co-digestion of additional feedstocks such as fats, oils, and grease, food waste, source-separated organics, organic fraction of municipal solid waste, and high strength industrial waste.
  • Anaerobic digestion of industrial wastewater.
  • Production of Class A biosolids and nutrient recovery from wastewater.
  • Retrofit compatibility with different anaerobic digestion tanks and roof configurations.

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