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Ponds from 1 to 2 Acres

Ponds from 1 to 2 Acres

Aeration systems offer great benefits to lake water quality. It is our belief that an aeration system in your lake will offer many long term water quality benefits. Simply put, an aeration system oxygenates the water column. This enhances bacterial growth to better the water quality for the long term. The oxygenated water column will promote the bacterial decomposition of the organics (leaves, twigs, etc.) at a rate of 10 times that of bacterial decomposition without air (anaerobic decomposition). Aeration will balance the dissolved oxygen level in the lake, and will prevent future oxygen depletion. Aeration systems also aid in reducing stratification of the lake and prevent the formation of the thermocline, by constantly circulating the water column. Optimal water “turns” are from .0.5 to > 1.0 turns each day to achieve maximum efficacy

As you probably know, there are two conditions that are necessary for a healthy lake; (1) Sufficient oxygen and (2) adequate mixing of the water to reduce stratification so that the oxygen is uniformly distributed throughout the water column. Dissolved oxygen is not only used by fish, vegetation, and other organisms, but it is also essential in the oxidation and bacterial decomposition of suspended organic material and bottom sediments.

Under ideal conditions, natural forces can keep a lake healthy and aesthetically attractive, but unfortunately our lakes do not exist under ideal conditions. Water mixing and movement is restricted. In the summer months, hot, hazy and cloudy days worsen the situation because of lack of photosynthesis and the fact that warm water holds less oxygen. Rain and irrigation water runoff carries organic debris, nutrients and other chemicals that consume oxygen.

An effective aeration system brings oxygen into the water, eliminates stratification and increases circulation. This makes the water at all levels able to support animal and plant life, control algae growth by limiting its food source, and aid in the decomposition of suspended organic material and muck on the bottom of the lake. Contrary to popular belief, the aeration system does not simply “add oxygen” to the water column. Instead, it augments and fortifies a waterbody’s natural tendency of inversion; the naturally occurring process that only takes place a couple of times of year. It is this increased water movement that allows for the many benefits of the aeration system including destratisfication, increased dissolved oxygen, and a significant reduction in the euthrophication rate of the lake.

Reductions in muck and the overall sediment level are by far a membrane-diffuser based system advantage. Unlike ceramic or air-stone based diffusers that can become clogged and inefficient over time, the self-cleaning membrane diffusers release millions of 0.55-1mm bubbles to circulate the lake water and there is no in-water maintenance required.

Another advantage to this type of aeration is the significant reduction in Algal Blooms. Although there is no single factor that cause an algal bloom; nutrient loading, warm temperatures, and lots of light are key contributors for both green algae and blue-green algae growth. Increased water clarity through the introduction of organisms such as zebra mussels resulting in increased light penetration is one portion of the conditions. An efficiently designed aeration system can however, address the other two conditions by effectively reducing ambient water temperatures by mixing the top and bottom layers of water essentially breaking up the thermocline, and by reducing the amount of available nutrients altogether.


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