Contents oIntroduction to water-energy nexus Water-energy nexus in wastewater treatment plant Water-energy nexus in drinking treatment plant ●】 Water-energy nexus in the Residential Sector Contents ⚫ Introduction to water-energy nexus ⚫Water-energy nexus in wastewater treatment plant ⚫ Water-energy nexus in drinking treatment plant ⚫ Water-energy nexus in the Residential Sector