| 摘要 |
Method of monitoring the efficiency of the aeration systems of biological basins of a wastewater treatment plant, characterized in that it consists in:i) measuring the throughput (Qt) of the plant and the rate (Qr) of recirculation of the mixed liquor from the clarifier to the aeration basin; andii) measuring the concentration of dissolved oxygen in the aeration basin so as:a) to establish, during an aeration period, the material balance between oxygen supplied, oxygen consumed and oxygen discharged with the effluent;b) to establish, during a non-aeration period, the material balance between oxygen consumed and oxygen discharged with the effluent;c) to determine the amount of oxygen consumed by the biomass based on the two material balances established above; andd) to determine, from the data obtained at a), b) and c) , the value of the transfer coefficient alphakLa under the conditions of the measurement. |
