Chengdu Pujiang County Sewage Treatment Plant was constructed in 2018, and the plant has adopted a more advanced oxidation treatment process. In the oxidation ditch of the plant, the original fluorescent cap of Hash II imported from the United States was originally used. However, it was found in the actual comparison on the spot that the measurement results of our fluorescence dissolved oxygen meter are basically the same as those of Hash. Now our fluorescence method dissolved oxygen meter has been successfully put into use in the sewage plant.
