STP WASTEWATER TREATMENT PLANT
An STP (Sewage Treatment Plant) is a facility that cleans wastewater from homes, businesses, and industries using physical, chemical, and biological processes to remove contaminants, making water safe to reuse or discharge, protecting public health and the environment by preventing pollution and conserving water resources. Key stages involve removing solids (screening, sedimentation), breaking down organic matter (biological treatment like activated sludge), and disinfection, producing clean effluent and managing solid sludge.