simulation of nitrate removal from water in a column bioreactor

Nitrate is one of the most common and major pollutants in water resources that has become a potential health threat today with the growing population in major cities by contamination of drinking water# therefore, removal of nitrate from drinking water and industrial wastewater is essential# in this study, a filled column bioreactor with a substrate modified by zeolite mineralization to stabilize the nitrate detergent microsatellite was investigated and simulated by computational fluid dynamics# according to the results, by changing the nitrate inlet concentration from 80 to 1500 mg/l, the nitrate was removed at a height of 90 cm in the bioreactor for 25 hours retention time# also, there is a significant change in nitrate removal by changing the inlet velocity and optimum inlet velocity was observed 4#66×10-4 m/s#