Aeration is not the cure-all for the problems a lake and pond can face. It can be misused, and when it is, it will not help, but hinder the problems. It is important to have a professional analyze and help where needed. When aeration is used properly, it can help and improve the water and habitat.
When there is aeration, the plant and animal life will thrive because of the oxygen that will be constantly flowing through the water. This will also help prevent fish kills. When the plants at the bottom of the lake are getting a good amount of oxygen, they will grow healthier and the fish that eat the plants will have a good amount of food that is growing.
This will be even more beneficial for warm water fish. They tend to struggle in an oxygen-deprived habitat because they require an adequate amount of dissolved oxygen levels. An aeration system will help the oxygen levels of the lake to further better the habitat of the warm water fish.
Stratification can be created and be problematic for the natural resources and environmental managers. Stratification is when the lake is separated into layers of different temperatures. Having an aeration system will circulate the water so there are no more separated layers that have different temperatures. Common techniques for destratification are air injection and mechanical mixing.
When there is oxygen deprived water, the plant life at the bottom with release different gases and metals that create water quality problems. When there is an aeration system, the water quality will greatly improve because oxygen will circulate throughout the whole lake, including the bottom sediments. The water quality will be enhanced by stabilizing the pH, removing carbon dioxide, and alkalinity.
How Lake Aeration Works
Lake Bed Aeration is the introduction of compressed air to a water body. When released at the bottom of a pond or lake, compressed air naturally begins to migrate towards the surface of the water. As air travels up the water column the pressure surrounding the bubbles slowly decreases causing the bubbles to increase in size -- a slight current begins to develop. The current draws oxygen-depleted water from the bottom, oxygenates it and transports it to the surface. This action protects fish, aquatic organisms and beneficial bacteria from suffocation by breaking down stratified waters while increasing dissolved oxygen levels.
Low levels of dissolved oxygen and highly stratified waters can characterize degraded or eutrophic ponds and lakes, where warm, oxygen-rich water is suspended above cool, oxygen-depleted bottom waters.
As anaerobic conditions begin to develop in deeper water, naturally occurring aerobic bacteria can no longer perform beneficial tasks such as waste digestion and water purification. With time, water quality greatly decreases leading to unsightly blooms of algae, the accumulation of aquatic sludge and the build-up of gases such as methane and hydrogen sulfide (which are well know for their offensive odors). Low oxygen levels can also lead to fish death and water kill.
Luckily, degraded ponds and lakes can easily be enhanced with the addition of an Airmax or Alphair Aeration System. Lake Bed Aeration acts to increase dissolved oxygen levels while eliminating stratified waters. Aerobic bacteria begin to recolonize in deeper water, where they rapidly begin to digest accumulated sludge and improve water quality.