What was the main driver for the initial invention of anaerobic sludge digestion systems?

Answer

Containment and volume reduction

The early development of anaerobic digestion was primarily motivated by the pressing need for effective waste management in rapidly growing urban centers. Before these systems were invented, primary sludge was often disposed of in ways that caused severe environmental and public health issues, such as dumping in rivers or drying on open beds, which created significant odors. The initial goal of early sanitary engineers was to create a method that could reliably contain the waste, reduce its physical volume, and stabilize the organic matter to mitigate public health hazards.

What was the main driver for the initial invention of anaerobic sludge digestion systems?
inventionwastedigestionsludgeanaerobic