Anaerobic Digester Projects

Anaerobic digesters produce biogas that can be used to power engines or used like the natural gas supplied by utility companies. The engines can power electric generators, and the resulting electricity used on site or fed into utility company transmission lines.

Most of the existing commercial anaerobic digesters in California are located at sewage treatment plants and landfills. However, because of extensive interest in recent years, there is growing interest in digestion of dairy manure. This focus includes “co-digestion” in which other organic feedstocks are combined with manure to enhance the production of biogas.

View the graphical description of the generic anaerobic digestion process (PDF).