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Wastewater - Solids Management: Digestion

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Michigan Environmental Education Curriculum
Wastewater Treatment

Organic matter is broken down and made inert in a process called anaerobic digestion. Specialized bacteria, able to live without oxygen (anaerobic conditions), use the biodegradable organic matter as a food source, producing carbon dioxide and methane gas and inert organic matter similar to peat moss.

Two Stage Digester

Two-stage digester

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