An aerobic septic system is what is known as an “alternative” septic system. Like a conventional (sometimes called “traditional) septic system, an aerobic septic system is basically a private wastewater treatment plant for one individual home.
Both systems use natural processes to treat the sewage and wastewater a home produces; an aerobic system produces bacteria that processes wastewater by pushing oxygen through it by mechanical/electrical processes, and a conventional septic system produces the bacteria that processes the wastewater anaerobically – without oxygen, and often without mechanical assistance.
An aerobic septic system does not need as large an area of land or specific soil and ground conditions to filter effluent, it generally uses a combination of synthetic and biochemical elements to process and filter effluent to purify it. Both systems remove pollutants and contaminants, rendering the effluent safe to be recycled back into the environment, but an aerobic system does it faster and creates a purer form of recycled water that can be used to water crops and gardens.