Why use a sewage treatment tank over a septic tank?

Question

Why use a sewage treatment tank over a septic tank?

Accepted Answer

Sewage treatment tanks operate a filtration process which removes molecules and debris from water, making it suitable for reuse under certain conditions. However, septic tanks store wastewater, but they don't treat it so the water is still contaminated and may contain pathogens which are hazardous to the human body and environment. Sewage treatment tanks provide treated water for reuse, reducing overall water consumption rates as well as keeping you safe.