Diffused aeration is used to increase oxygen levels in relatively
shallow lakes or reservoirs which are stratified to any degree or which experience anaerobic conditions in
the winter months. In diffused aeration, compressed air is released through holes in diffuser lines placed near the
bottom of the lake or reservoir.
The rising bubbles
transfer oxygen to the water and transport bottom water to the surface, where direct contact with the atmosphere
and photosynthesis continue the oxygenation process. The circulatory pattern created by the water flow also discourages the
growth of algae species that prefer calm water or require adequate sunlight to proliferate.