Sewage Treatment Plant
A sewage treatment plant (STP) is a facility designed to treat and process domestic and industrial wastewater, commonly known as sewage or wastewater, before it is discharged into the environment or reused for various purposes. The primary goal of sewage treatment plants is to remove pollutants, contaminants, and harmful substances from the wastewater, making it safe for the environment and public health. The typical sewage treatment process in a sewage treatment plant involves several stages: Preliminary Treatment: The incoming raw sewage undergoes preliminary treatment to remove large solid objects, such as sticks, rags, plastic, and other debris. This process includes screening and grit removal to protect downstream equipment and prevent clogging. Primary Treatment: In the primary treatment stage, the wastewater flows into large sedimentation tanks, called primary clarifiers. In these tanks, the flow velocity is reduced, allowing heavier solids and organic matter to settle a...
