I-Sinomeasure open channel flow metres kanye namamitha ezinga le-ultrasonic asetshenziswa endaweni yokuhlanza indle e-Leshan City, eSifundazweni saseSichuan, wonke asebenzisa ubuchwepheshe be-AAO(Anaerobic Anoxic Oxic).
Inqubo ye-Anaerobic/Anoxic/Oxic (A/A/O) isetshenziswa kabanzi ezitshalweni zikamasipala zokuhlanza amanzi angcolile, afaka phakathi ukusebenza kahle kokususwa kwezakhi.