Page 19 - Simplified Wastewater Treatment Fundamentals_Ponds and Lagoons PT1

Stabilization Ponds & Sludge Lagoons

Anaerobic Sludge Lagoons

Anaerobic Sludge Lagoons are deeper than Facultative Sludge Lagoons,

providing long detention times for the sludge to digest and break down.

In the absence of oxygen, the sludge in an Anaerobic Lagoon will ferment,

smelling like rotten egg odors produced from hydrogen sulfide.

Anaerobic Sludge Lagoons are typically located in remote areas. Anaerobic

Sludge Lagoons must be dredged regularly to manage sludge inventory.