1 Answer

Motors and Aerators

Air supply is provided through the application of a blower motor or an aerator. Blower motors push air through diffusers or bubblers. Aerators submerged in the waste water pull outside air into the mixed portion of the tank with vacuum. Aeration units may be retrofitted to existing tanks or may be installed as a separate unit. Protecting aeration devices from damage or plugging requires installation of a primary tank or trash trap that will catch large debris.

Pump Controls

Aeration systems can be utilized on a gravity system or a pump system. For the best-quality effluent, aerobic treatment units require waste water dosages to be strictly controlled. Waste water must remain in the ATU for a length of time calculated by the system designer. Common controls consist of electrical panels with timers that can run a pump as well as control the air blower or aerator. ATUs designed for nitrogen reduction, which requires the air supply to be temporarily shut off, benefit greatly from this setup.

Read more: How Does an Aerator Septic System Work? | eHow.com http://www.ehow.com/info_8291965_aerator-septic-system-work.html#ixzz286TmiNBU

http://www.ehow.com/info_8291965_aerator-septic-system-work.html