What Is Anaerobic Digestion?

In anaerobic digestion, methane and carbon dioxide are released as special bacteria convert the organic material into safe biosolids.  The bacteria can exist only in a non-air environment, and work more quickly at elevated temperatures, so a floating cover keeps the temperature stable, contains odors, and traps gasses, which are normally 50 to 75 per cent methane.  The methane is sometimes burned off, or in an increasing number of cases, collected and used to power the facility or sold to utility companies for resale.

To understand more about how anaerobic digestion works, see our article “What Do Floating Covers Do?”

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