Investigation of Temperature and Influent Load on Nitrifying Treatment of Using Wastewater CFD

The paper describes the effect of temperature, ammonia concentration and feed flow rate on nitrifyingtreatment of wastewater usage computational fluid dynamics (cfd) for two phase bubbly flow in a split cylindrical airlift reactor with a 0.085 m initiator diameter and 0.505 m height. superficial gas velocity was used as the operational parameter, air was used as the dispersed phase, and wastewater containing ammonia was used as continuous phase. temperature enhancement in a constant o2 and nh+4 concentrations, resulted the increase of reactions rate also no-2 had an increase of about 3 times as much. by the feed flow rate increase,o2 consumption increase and the rate of no-2 production increase more than no-3 but decrease the reactions efficiency decrease in a constant time. nh+4 concentration enhancement leads to the increase of o2 consumption and better reactions efficiency at higher nh +4 concentration, no-2 concentration increases more.no-2modeling results are compared with the experimental data. the cfd modeling results show suitable agreement with the experimental data.