What is the approximate percentage of methane and carbon dioxide produced during anaerobic digestion?

Study for the GWWI WEF Wastewater Treatment Fundamentals Test. Review key concepts with flashcards and multiple-choice questions, complete with hints and explanations. Prepare to ace your exam!

The approximate percentage of methane and carbon dioxide produced during anaerobic digestion is typically around 65% methane and 35% carbon dioxide. This ratio can vary based on several factors, including the composition of the organic material being digested, the conditions of the digestion process, and the specific microbial community present.

Methane is a primary product of anaerobic digestion because it is the end result of the breakdown of organic matter in the absence of oxygen, facilitated by methanogenic microorganisms. Carbon dioxide is also produced during this process, but in lesser amounts compared to methane. While variations can occur that lead to different ratios, the 65/35 split represents a common outcome in various studies and practical applications within the field of wastewater treatment.

The other options typically represent ratios that are either higher in methane or lower in carbon dioxide than what is commonly observed in anaerobic digestion processes, which makes them less accurate in the context of typical conditions.

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