Digester Substrates
Anaerobic digesters are capeable to work on a wide variety of organic substrates, but care needs to be taken regarding process management to ensure a proper bio-chemical environment for the methane producing bacteria doing all the work.
Typical substrates include:
- Manure - cattle, hog or poultry, etc.
- Energy Crops - corn, switch grass, miscanthus, etc.
- Organic Materials - household or food waste, grease trap waste
(FOG), material from food processors and
slaughterhouses, glycerine from bio-diesel
production and stillage from ethanol production
Knowledge of the effects each substrate has on the digester is critical to effectively operating the system.
Substrate feeding has to be customized to accommodate a variety of organic materials to feed the digester on regular intervals.
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