AN+ Anaerobic Digestion System

AN+ Anaerobic Digester

In anaerobic digestion microorganisms break down biodegradable material in the absence of oxygen. The Keneco AN+ Anaerobic Digestor design effectively turns wastewater into green energy, power, and heat with extremely high efficiency, creating reliable, sustainable, and repeatable results in biological wastewater treatment.

AN+ Process Diagram

AN+ Anaerobic Digestion System

System Overview

Anaerobic decomposition is a complex process. It occurs in three basic stages as the result of the activity of a variety of microorganisms. Initially, a group of microorganisms converts organic material to a form that a second group of organisms utilizes to form organic acids. Methane-producing (methanogenic) anaerobic bacteria utilize these acids and complete the decomposition process.


  • Conditioning tank
  • Anaerobic sludge bed
  • Separator
  • Integrated controls



  • Converts up to 95% of the organic (COD) load from high strength wastewater (above 400 mg/L to energy (methane).
  • Small footprint compared to conventional anaerobic reactors
  • Three phase separator produces high quality effluent with low TSS.
  • Automated process controls ensure adequate micronutrient addition, maintenance of optimum pH range, and required up-flow velocity.
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