ADBA National Conference December 2022 BANNER AD.
A simple anaerobic digestion flow diagram.

Anaerobic Digestion Systems

In addition to this page, the following sub-pages explain how anaerobic digestion systems have been developed for a variety of purposes:

Anaerobic Digestion UK
Anaerobic Digestion Model
Anaerobic Co-Digestion

Digestate from Anaerobic Digestion

Anaerobic Digestion Systems – A Basic Process Flow Chart

Every AD Plant designer provides a unique plant process design, however, the flow chart below is common to most AD plant designs. Most designs include a Combined Heat & Power (CHP) element, and the most common use of that is in space heating for homes and factories.

Anaerobic Digestion Flow Chart

Get your Printer Friendly .pdf version of this flow chart here.


  1. Reply

    I think this is a real great article. Now I am more convinced that anaerobic digestion will work. Want more info.

    1. Reply

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  2. Reply

    Does anyone know if the answer to this? Another way to look at these systems is to calculate how much removing the energy costs would reduce the price per litre of producing milk.

    Will it result in a bigger profit at the end of the year if the money were invested in more cows? Will it keep the business competitive with fluctuating milk prices?

    • Siphelele Mcetywa
    • August 29, 2019

    what I would like to know is what challenges type of challenges may occur when trying to establish or start a AD PLANT?.Also how long can this process take in terms of constructing a fully functional AD Plant?.

      • biogasman
      • August 29, 2019

      Where would this plant be built? What size, and what is the likely biomass feed for it?

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