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.
奥贝尔氧化沟曝气机协同实现溶解氧自动控制
- Title:
- Automatic Control of Dissolved Oxygen through Aerator Coordination in Orbal Oxidation Ditch
- Keywords:
- Orbal oxidation ditch; DO; automatic control
- 摘要:
- 对某污水处理厂氧化沟系统中多个曝气机进行协同调度，将定频曝气机周期性间歇控制和变频曝气机的PID控制相结合，运用PLC和上位机的类人工智能控制，实现了对现有氧化沟表面曝气的溶解氧自动控制。实际运行数据表明，曝气机协同控制的溶解氧控制精度高，水质改善效果显著，对同类工程有一定的借鉴意义。
- 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.
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