<human>: What is the difference between a septic system and a sewage treatment system?
<bot>: A septic system is a wastewater treatment system that uses microorganisms to break down organic matter in wastewater. It consists of a septic tank, which collects wastewater from the home, and a drain field, which is an area of soil that absorbs the wastewater and treats it. The treated water is then released into the environment through a leaching field or drain field. Sewage treatment systems are similar, but instead use physical, chemical, and biological processes to remove pollutants from wastewater before releasing it back into the environment.