The integrated vertical-flow constructed wetland system was built in 2008 next to the sewage treatment station of
China University of Mining and Technology and is used for the secondary treatment of municipal wastewater, with
CODCrof 18.7~65.2 mg/L; NH3-N, 9.2~33.4mg/L; TN, 14.6~41.2mg/L; and pH, 7.0~7.2.