Meacon open channel flow meters and ultrasonic level meters are used in sewage treatment plant in Leshan City, Sichuan Province, all of which use AAO(Anaerobic Anoxic Oxic) technology.
Anaerobic/Anoxic/Oxic (A/A/O) process is applied widely in municipal wastewater treatmen plants, which attribute to good perfromance for nutrient removal.
