Sewage treatment facilities are specialized plants designed to process and clean wastewater from homes, industries, and businesses. They remove harmful substances and pollutants to protect public health and the environment. The treatment process typically involves several stages, including screening, sedimentation, and biological treatment. After the initial treatment, the cleaned water is often released into rivers or lakes, while the solid waste, known as sludge, is further processed. This sludge can be treated and repurposed as fertilizer or disposed of safely. Overall, sewage treatment facilities play a crucial role in maintaining clean water sources and promoting sanitation.