Industrial Park Wastewater
Centralized Industrial-Park WWTP Monitoring — Ningjin PPP Project
1 / 4Project Background
The centralized wastewater plant of Ningjin Economic Development Zone (West City Industrial Park) treats 40,000 m³/day of mixed industrial and domestic wastewater under a PPP model — where precise effluent flow measurement directly determines settlement between the partners.
Customer Challenge
Industrial and domestic inflows mix with wide quality swings, while the PPP contract demands accurate effluent quantity for operational settlement and discharge control. Instruments had to resist interference and run stably for years.
The TENGINE Solution
TENGINE instruments were deployed across the biological tanks, secondary clarifiers and effluent metering channel: TSS suspended-solids analyzers, LDO luminescent dissolved oxygen, USL ultrasonic sludge blanket meters, pH analyzers, and the WL-1A1 ultrasonic open-channel flowmeter for precise effluent measurement — supporting aeration control, sludge discharge and settlement metering.
Implementation
The instruments were installed at the biological tanks, clarifiers and metering channel, feeding real-time data to the plant's process control and settlement systems.
Project Results
Full-process monitoring keeps the plant's treatment stable, while precise effluent metering satisfies both PPP settlement and environmental supervision needs — a solid foundation for long-term partnership operation.
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