Lagoons must be at least 50 feet from any property line and 200 feet from neighboring residences. Therefore, the minimum size lot area for lagoon construction is 3 acres. In areas where the soil is not conducive to compaction, additional materials such as soda ash, bentonite, or plastic liners may be required to completely retain seepage of effluent. Open water during the summer months provides a nesting ground for mosquitos, which requires mowing of the lagoon banks to reduce possible mosquito breeding area. Aerobic Treatment Process Aerobic treatment tanks are sometimes used to treat home sewage.
Aerobic tanks are similar to septic tanks, but the treatment process is quite different.
In aerobic units, air is mixed into the sewage which promotes growth of oxygen-using aerobic bacteria. A stirring agitator or an air compressor is used to supply the oxygen to the aerobic bacteria. The biological activity and digestive process in an aerobic tank are much more efficient than in an anaerobic septic tank, but energy is required to provide aeration. If the aerobic tank is properly functioning, the effluent discharge is cleaner and less odorous. However, it is still sewage and must be discharged to an absorption field for final filtration and purification.