I-Chengdu Pujiang County Sewage Treatment Plant yakhiwa ngo-2018, kwaye isityalo siye samkela inkqubo yonyango ye-oxidation ephezulu kakhulu. Kumsele we-oxidation wesityalo, i-cap yasekuqaleni ye-fluorescent ye-Hash II evela e-United States yayisetyenziswa ekuqaleni. Nangona kunjalo, kufunyenwe kuthelekiso lwangempela kwindawo yokuba iziphumo zokulinganisa ze-fluorescence yethu imitha ye-oksijini echithwe ngokusisiseko ziyafana nezo zeHash. Ngoku indlela yethu ye-fluorescence enyibilikayo imitha yeoksijini isetyenziswe ngempumelelo kumzi-mveliso wogutyulo.