As an important part of smart water network construction, the online water quality monitoring system for drainage pipelines is developed and manufactured by Shandong Dongrun Instrument based on the actual operating conditions of domestic pipeline networks. It adapts to various drainage monitoring scenarios and realizes real-time water quality data and digital management.
The system can monitor multiple core water quality parameters in real time, including COD, ammonia nitrogen, total nitrogen, pH, and turbidity. It is designed to withstand harsh underground installation environments with high humidity, standing water, and poor ventilation, ensuring long-term stable operation.
In municipal projects, the system can be deployed at key urban pipeline nodes, stormwater and sewage separation outlets, and river discharge outlets. It enables real-time monitoring of rainwater-sewage cross-flow and sewage overflow, providing reliable data for pipeline network renovation.
In industrial parks, it can be installed at the discharge end of enterprise pipelines to identify illegal nighttime discharges and intermittent excess emissions. Automatic alarms are triggered when parameters exceed the limits, enabling regulators to respond quickly. The system can also be used at the discharge outlets of industrial parks and large communities to monitor daily drainage water quality.
Compared with traditional manual sampling and laboratory testing, online monitoring systems operate around the clock, eliminate time restrictions, and continuously record water quality changes. Monitoring data is stored automatically and supports connection to third-party regulatory platforms, meeting traceability requirements for environmental compliance inspections.
Through this system, on-site inspection labor costs can be reduced, drainage management efficiency improved, water environment management work supported, and the environmental risk caused by direct sewage discharge reduced.



