Introduction to the reclaimed water plant: The Yanghu reclaimed water plant in the Wetland Science and Technology District uses the "MSBR + constructed wetland + natural wetland" ecological combination process to treat urban domestic sewage. Domestic sewage is treated by the MSBR system to reach the first-level B standard, and then is purified through artificial wetlands to reach the first-level A standard, and then enters the natural strong purification area of the wetland scenic spot.