RESEARCH ON WASTEWATER TREATMENT USING ACTIVATED SLUDGE TECHNOLOGY IN THE ANAEROBIC-ANOXIC-AEROBIC CONFIGURATION

Municipal wastewater management has become one of the most challenging environmental issues due to the increasing volume of urban wastewater and strict regulations imposed on the concentration of effluent pollutants. In the present case, the influencing disturbances of pollutant concentration and flow rate, temperature changes that influence/affect the complex biochemical processes that take place in bioreactors were simulated. This approach was considered in the present research, approaching the Alexandria municipal sewage treatment plant using activated sludge technology in the Anaerobic-Anoxa-Aerobic intensive configuration. The improved model was developed in a biological installation based on activated sludge, coupled with a modified version of the simulation model in which anaerobic-anoxic-aerobic phases were alternated.The simulation results ensure the simultaneous removal of organic substances, nitrogen and phosphorus, eliminate the addition of an additional carbon source for the denitrification process, reduce the sludge volume by about 15%, reduce energy consumption by about 30%.