Flow Ctrl Tech Engineering

Wastewater Aeration Basins: Dissolved Oxygen (DO) PID Control & VFD Blower Optimization

Slash wastewater plant electricity consumption by 40%: optical dissolved oxygen (DO) sensors, cascade PID air header pressure control, and modulating membrane diffusers.

  • Aeration blowers represent the single largest energy consumer in municipal wastewater treatment.
  • Maintaining excess DO (e.g., 4.0 mg/L instead of 2.0 mg/L) exponentially wastes electricity with zero biological benefit.
  • Most-Open-Valve (MOV) algorithms keep at least one air basin valve 80–90% open to minimize blower backpressure.

Flow Ctrl Tech Engineering: Turnkey industrial automation, PLC programming, SCADA development, HMI, fieldbuses, and IIoT architectures. Contact our engineering center at [email protected] or phone +91 91110 91005.