Researches On The A/O-biofilm Process Disposing Of The Municpal Waste Water

The traditional biological denitrogenation process or carries in the separated reactors which have different DO density, such A/O, A~2/O process ; or carries in a single reactor which creates sequential aerobic and anoxic environment in turn ,like the SBR craft. Although the active sludge biological nitration denitrogenation processes are mature, these processes have many shortcomings, such as high cost of facility construction, large consumption of energy, low nitrogen removal efficiency and high cost of operation.On the whole, the simplex biological technology removaling the nitrogen and pHospHorus is not high effective , and hard to meet the needs of the society's development .Now ,we attempt to integrate the biofilm process with the active sludge process , and call it biofilm - active sludge compound process , so it has the advantages of the two process, specially to removing...