Originally Posted By: Bill Cody
Mixing sediments to aerate them significantly speeds decay of those sediments. Aerobic digestion (oxygenated) is a lot faster than anaerobic decay (no oxygen).

Exactly! That is why some septic tanks use aeration and sewage treatment plants uses massive amounts of surface aeration.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.