Biogas is produced through anaerobic digestion of biological material by bacteria. It is comprised primarily of methane and can be used as a clean fuel. However, barriers to biogas production include inadequate economic payback, operation and maintenance challenges, and heating costs for digesters. The document then provides details on what biogas is, why it is useful, the production process involving four stages, and an example diagram of a simple biogas digester.

1. Biogas DigestersBy Bryce Dinger

2. Copying Nature to Produce Energy

3. Barriers to Biogas
Inadequate payback/economics
Operations and maintenance
complications and concerns
Digester heating costs
Lack of education

4. What is Biogas?
 Biogas is created when bacteria degrade
biological material in an anaerobic state, or the
absence of oxygen
 Biogas is a clean fuel produced from anaerobic
digestion
 Biogas is comprised of 55-65% methane, 35-45%
carbon dioxide, 0.5-1.0% hydrogen sulfide and
other traces of water vapor
 Biogas is corrosive in nature making it difficult to
store

5. Why Biogas?
By harnessing biogas, various types of
energy can be produced
 Power has become a major concern in
rural regions of third world countries
Sanitation problems exist in every
population, and digesters offer a
healthy solution

6. Biogas Production
4 stages within process
1.Liquefaction
2.Acid production
3.Acetate Production
4.Methane Production

7. A more practical example
https://www.researchgate.net/profile/Charlotte_Rennuit/publication/272647066/figure/fig1/Figure-1-Schematic-diagram-of-the-simple-unheated-biogas-digester-The-diluted-manure.png