Types of Lagoons Used In Wastewater Treatment

Wastewater treatment

With the increased effort in improving the water safety in residential areas, there are various types of wastewater treatment systems currently available. Your choice depends on your contaminants and the treatment setup you prefer.

Chemical-free water treatment is an energy-efficient and environmentally friendly way of treating wastewater. Lagoons are among the most common methods of chemical-free residential water treatment in Fort Wayne, a service provided by firms such as Superior Water Conditioners.

These are systems similar to ponds, which receive, retain, and treat wastewater for a specified period. They categorize them according to the quantity of oxygen and the degree of mixing.

Here are the typical categories:

Anaerobic Lagoons

Inside anaerobic lagoons, wastewater solids separate and settle in layers. The topmost layer is made of scum, floating materials and grease that keep out oxygen allowing bacteria and microorganisms to thrive and treat wastewater.

Anaerobic lagoons typically have a depth of 6-30 feet. Detention time in these lagoons varies from twenty days to fifty days, and people usually use them for the treatment of high strength wastewater.

Aerobic Lagoons

These lagoons are typically shallow, not more than five feet, to allow penetration of oxygen and sunlight. They are the most suitable in warm climates where freeing is less likely to occur. Wastewater detention time is 3-50 days for adequate treatment.

They should have paved bottoms to prevent the growth of weed in the lagoon.

Facultative Lagoons

You can find both anaerobic and aerobic conditions in facultative lagoons. They have a depth of 4-8 feet with retention times of approximately 25 days. The top layer has algae, which supply oxygen to the lagoon via photosynthesis.

With an increase in depth, the lagoon progressively becomes anaerobic. These are the most common lagoons used by households and small communities.

Lagoon systems are easy to build and can be adapted to fit varying demands. Maintenance consists of foam and algae removal, cleaning of outlet and inlet pipes and vegetation trimming. It is a cost-effective and efficient method of wastewater treatment.