Method for determining optimal preservation temperature of aerobic denitrifiers in wastewater treatment for total nitrogen removal

摘要

The present disclosure relates to a method for determining optimal preservation temperature of aerobic denitrifiers in wastewater treatment for total nitrogen removal, and belongs to the technical field of environmental engineering. The method of the present disclosure comprises measuring the cell activity state of the aerobic denitrifier stored at different temperatures based on flow cytometry, and taking the preservation temperature closest to the cell activity state of the aerobic denitrifier during the pilot operation as the optimum preservation temperature, and the data obtained from the test uses the cell activity state and performance effects after activity recovery to verify reliability. By using the method of the present disclosure, the step of recovering the aerobic denitrifier activity can be omitted, and the wastewater treatment plant, which intends to adopt the aerobic denitrifier process technology to achieve efficient removal of nitrate and total nitrogen, is effectively helped to realize the energy saving, consumption reducing operation, and the removal rate of nitrate and total nitrogen can reach 90% and 88% respectively. At the same time, the starting time of engineering application of the aerobic denitrifier process can be effectively shortened, the long-term stable operation of the aerobic denitrifier process is maintained, and the method has high industrial feasibility.