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Project time: 2016 Capacity: 600000 m3/d
Main process: coarse grating→fine grating→aeration and sand sedimentation→primary sedimentation→membrane grating→biological tank→MBR membrane tank→ozone contact tank→ultraviolet disinfection→effluent water
Asia's largest buried water reclamation plant

As Beijing's first fully underground reclaimed water plant, but also Asia's largest main treatment process all in the underground reclaimed water plant project, after the completion of the acacia house reclaimed water plant in the full-year full-load operation, can be 200 million cubic meters of sewage into a recycled water can be utilized, the equivalent of 100 Kunming Lake, known as Beijing's “underground water city! It is called the “underground water city” of Beijing. The treatment scale of the water plant is 600,000 cubic meters / day, the reclaimed water treatment system adopts the world's advanced technology, and the quality of the effluent water reaches the national surface water environment IV standards. Reclaimed water is injected into the wetland landscape on the ground and transported to the Xiaolong River next to it, bringing back the beauty of the Yimu Spring that disappeared from Beijing for decades.