New Delta Wastewater Treatment PlantThe New Delta Wastewater Treatment Plant is a wastewater treatment plant in El Dabaa, Matrouh Governorate, Egypt. It is the world's largest wastewater treatment plant.HistoryThe construction of the plant was completed in June 2023. The construction lasted for 24 months.ArchitectureThe plant was designed by Elnabarawy Consulting architectural firm. The plant spans over an area of 32 hectares.Technical specificationsThe plant has a water processing capacity of 7.5 million m3 per day. It is the world's largest wastewater treatment plant.FinanceThe plant was constructed at a cost of US$522 million.