A Sewage Treatment Plant is a facility that cleans and processes sewage. It flows through screens and into settlement basins to sluice out the trash and debris that would otherwise cause a significant amount of damage to the equipment. This can cause excessive wear to the equipment and reduce its life. This process will ensure that wastewater is not contaminated with harmful bacteria, viruses, and other materials. Here are some things you need to know about STPs.

Secondary treatment involves mixing raw and processed sewage, creating a homogenous solution. This mixture is mixed with oxygen to break down organic matter and remove pathogens. The balancing tank is sized to handle a full six to eight hours of sewage. A blending system is also commonly used to ensure that the wastewater is homogeneous and free of microbial growth. In addition, an aeration plant must include a filtration system.

Secondary treatment is often an aerobic process. Aeration basins contain aerators. These systems consist of pipes with discs attached to them. Discs are thin, rubber, or ceramic membranes designed to allow air to pass through them. The air flowing through these systems creates bubbles in the water column. The oxygen from the water helps bacteria digest the organic matter in the wastewater. This process removes most harmful chemicals, though it cannot remove nitrates or chlorides.