Unit 4.1: The Anaerobic Digestion Process

Background and Guiding Questions

Anaerobic digestion is a complex biochemical reaction carried out in a number of steps by several types of microorganisms that require no oxygen to live. This reaction produces biogas, which is primarily composed of methane and carbon dioxide.

Guiding Questions

  • What are the four steps for anaerobic digestion?
  • What is the typical composition of biogas?

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