TENGINE — Tengine Innovation

Effluent Compliance Monitoring

Effluent Total-Nitrogen Early Warning at a County WWTP in Shandong

Shandong, China 2023 County WWTP
Effluent Total-Nitrogen Early Warning at a County WWTP in Shandong — project photo 11 / 2

Project Background

A county wastewater plant in Shandong receives industrial wastewater mixed into its influent, causing large quality swings that stress the denitrification process and threaten effluent total-nitrogen compliance.

Customer Challenge

With influent swinging, denitrification needs flexible, timely control — but manual lab testing lagged hours behind. The plant could neither predict total-nitrogen exceedance nor guide carbon dosing in time, living with constant compliance risk.

The TENGINE Solution

A UVN nitrate nitrogen analyzer was installed for online real-time nitrate monitoring, replacing lagging lab data with a continuous process signal.

Implementation

The UVN analyzer was deployed at the process control point, streaming real-time nitrate data for dosing guidance and exceedance early warning.

Project Results

Online monitoring eliminated the lab lag: carbon dosing is now guided precisely, effluent total-nitrogen exceedance is flagged before it happens, compliance risk is avoided and discharge stays stable.

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