LI Jian-hua,MA Qing-kui,ZHAO Jian.Automatic Control of Dissolved Oxygen through Aerator Coordination in Orbal Oxidation Ditch[J].China Water & Wastewater,2022,38(24):97-101.
Automatic Control of Dissolved Oxygen through Aerator Coordination in Orbal Oxidation Ditch
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第24期
Page:
97-101
Column:
Date of publication:
2022-12-17
- Keywords:
- Orbal oxidation ditch; DO; automatic control
- Abstract:
- The multiple aerators in oxidation ditch system of a sewage treatment plant was coordinately scheduled to achieve automatic dissolved oxygen (DO) control of surface aerating in oxidation ditch by combining periodic intermittent control of fixed-frequency aerator with proportional integral derivative (PID) control of variable frequency aerator and artificial intelligence-like control of programmable logic controller (PLC) and upper machine software. According to operating data, the automatic DO control is more precise and it can improve wastewater treatment effectiveness while saving energy, which provides reference for similar projects.
Last Update:
2022-12-17