Energy Saving of SBR Process for Wastewater Treatment

The SBR process for wastewater treatment adopts intermittent feeding.Each link in the sewage treatment can be controlled to facilitate process parameters control.According to the influence of dissolved oxygen concentration on the sewage effluent quality,the mathematical model of the control system was simplified.The dissolved oxygen concentration in sewage was controlled by adjusting the fan air volume.After commissioning of the sewage treatment plant,the improved system could meet the requirements for operation of the SBR process,and the energy saving effect was obvious,especially when the influent COD value was less than 500 mg/L.