Sewage treatment plant (STP)

A Sewage Treatment Plant (STP) is a facility that cleans wastewater from homes, businesses, and industries before it's released back into the environment. It uses a combination of physical, chemical, and biological processes to remove contaminants such as solids, organic matter, and harmful pathogens. Initially, solids are settled out, then biological processes break down organic waste, and chemicals may be added to disinfect the water. The goal is to produce clean, safe water that meets environmental standards, protecting public health and aquatic ecosystems. STPs are essential for sustainable urban living and environmental management.