ABSTRACT
Wastewater treatment is designed to use the natural purification processes (self-purification processes of streams and rivers) to the maximum level possible. It is also designed to complete these processes in a controlled environment rather than over many miles of streams or rivers. Moreover, the treatment plant is also designed to remove other contaminants that are not normally subjected to natural processes, in addition to treating the solids that are generated through the treatment unit steps. The typical wastewater treatment plant is designed to achieve many different purposes:
• Protect public health. • Protect public water supplies. • Protect aquatic life. • Preserve the best uses of the waters. • Protect adjacent lands.
