Chengdu Pujiang County Sewage Treatment Plant yakavakwa muna 2018, uye chirimwa chatora imwe yepamusoro oxidation kurapwa maitiro.Mugomba reoxidation yechirimwa, iyo yekutanga fluorescent cap yeHash II yakatorwa kunze kwenyika kubva kuUnited States yakatanga kushandiswa.Nekudaro, yakawanikwa mukuenzanisa chaiko pane iyo nzvimbo kuti kuyerwa kwemhedzisiro ye fluorescence yakanyungudika okisijeni mita yakangofanana neyeHash.Ikozvino nzira yedu yefluorescence yakanyungudutswa mita yeokisijeni yakashandiswa zvinobudirira muchirimwa chetsvina.