A Fixed-Film Bio-Media Process Used for Biological Nitrogen Removal from Sewage Treatment Plant

In this study, a lab-scale fixed-film bio-media process was developed and operated to evaluate nitrogen removal from domestic sewage treatment plants. For removal, the applied in series with anaerobic, anoxic, aerobic units three separate reactors that were continuously at same loading rates hydraulic retention time. A biofilm separation bioreactor for on-site wastewater employed synthetic fiber modules so biomass could be completely attached media. paper, performance of an average flow rate evaluated before after stabilization system removal. The results show successful improved secondary tertiary treated wastewater, 77% decrease total discharge. Rapid nitrification achieved, denitrification performed anoxic filter external carbon supplements during wastewater. However, aeration supplied achieve reaction stable supply enhance moderate temperature benefits complete nitrifying bacteria within due separation.