Effluent refers to liquid waste or sewage that is discharged into a body of water, such as a river, lake, or ocean. This waste can come from various sources, including industrial processes, sewage treatment plants, and agricultural runoff. Effluent often contains pollutants that can harm aquatic ecosystems and affect water quality. To manage effluent and minimize its environmental impact, many countries have regulations in place. These regulations often require treatment processes to remove harmful substances before the effluent is released. Proper management of effluent is essential for protecting water quality and maintaining the health of ecosystems.