Typical piggery effluent dam with solids screen and aeration, close-up below.
The bottom of the dam is filled with sludge.
One self priming slurry pump and 50 mm injector was fitted.
1 Minute after start-up. Notice the dissolved air floating to the surface at 2 different spots.
Thick crust formation approximately 1 hour after start-up.
Dissolved air creating aerobic conditions to digest the sludge.
Close-up of the crust on the surface of the dam.