BU Ji-hong.Application of Oxygen Uptake Rate Aeration Control System in Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(11 11):58-62.
Application of Oxygen Uptake Rate Aeration Control System in Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
11 11
Page:
58-62
Column:
Date of publication:
2021-06-01
- Keywords:
- oxygen uptake rate (OUR); aeration control system; DO; energy conservation; wastewater treatment plant
- Abstract:
- An aeration control system combining aeration calculation model based on oxygen uptake rate (OUR) and DO prediction model based on ammonia nitrogen load was applied to a wastewater treatment plant in Wuhan,and operational stability and energy saving performance of the aeration control system were investigated. The aeration control system could reasonably set the DO value according to the influent ammonia nitrogen load, calculate the optimal oxygen demand of the aerobic tank according to the OUR and DO values, and control the actual DO value within the range of (set value ±0.315) mg/L. At the same time, the aeration control system could ensure that COD and NH3-N in the effluent meeting the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant, which reduced power consumption of the blower by 21.9% per unit volume of wastewater.
Last Update:
2021-06-01