Urban Pipeline

Combined Sewer Overflow (CSO) Monitoring and Control System Solution

Real-time monitoring solution for combined sewer overflow discharge points using multi-band Doppler radar flowmeters for precise overflow measurement, storm overflow early warning, and pollutant discharge accounting.

Overview

Summary

Key Advantages

Multi-band Doppler radar non-contact measurement, stable operation during storm floods

Integrated radar + camera for synchronized overflow video and flow data collection

Automatic overflow event identification: level threshold trigger, flow reversal detection, velocity surge alarm

Linked with meteorological forecast systems, automatically enters high-frequency collection mode before storms

Complete CSO event recording: start/end time, duration, cumulative overflow volume, peak flow rate

Multi-level alarm push: SMS, APP, platform popup, emergency command display

Automatic annual/quarterly CSO discharge statistical reports in environmental reporting formats

Challenges

CSO discharge points lack monitoring capabilities, overflow frequency and volume cannot be quantified
Rapid water level rise during storms destroys or submerges traditional contact-type instruments
Complex overflow point environment with floating debris interferes with conventional measurement
Environmental regulators require precise data on overflow frequency, duration, and discharge volume
Lack of early warning mechanisms leads to passive, after-the-fact emergency responses

Results

100% automatic capture of overflow events with precise frequency and volume accounting
Non-contact measurement remains stable during storm flood conditions with >98% data completeness
Camera synchronously records overflow footage as video evidence for environmental inspections
Storm warning coordination triggers emergency response 30 minutes in advance, reducing overflow pollution by over 40%
Annual CSO discharge reports generated automatically to meet environmental compliance requirements

Solution Details

The Combined Sewer Overflow (CSO) Monitoring and Control System Solution is a comprehensive technological approach designed to tackle the critical challenge of urban water pollution caused by overflow events in combined sewer systems (CSS). It provides real-time monitoring, precise data collection, and proactive control for drainage authorities.

Addressing the CSO Pollution Challenge

In combined sewer systems, heavy rainfall can cause stormwater volume to exceed the system's capacity. This leads to Combined Sewer Overflow (CSO), where mixed rainwater and sewage discharge directly into rivers, causing severe environmental pollution.

This overflow event is a major focus in urban water governance and environmental inspections, requiring accurate monitoring and management solutions to mitigate its impact.

Core Functionality of the CSO Monitoring Solution

This solution deploys advanced multi-band Doppler radar flowmeters at critical overflow discharge points within the sewer network. These devices provide real-time monitoring and precise measurement of overflow events as they occur.

Each unit integrates radar flow sensors with high-definition cameras, enabling simultaneous recording of accurate flow data and visual on-site footage during an overflow. This synchronized data collection offers reliable support for overflow frequency statistics and pollutant discharge accounting.

Integrated Control and Proactive Management

Through RTU remote terminals linked to a centralized monitoring cloud platform, the system enables coordinated storm warning, real-time overflow alerts, and emergency dispatch functions. This integrated network scheduling optimization helps authorities shift from a reactive to a proactive operational model.

The platform facilitates proactive prevention by providing the tools needed for effective emergency response and long-term sewer network management planning.

Key Features of the CSO Monitoring System

Advanced Non-Contact Measurement

Utilizes multi-band Doppler radar for stable, reliable operation even during intense storm floods, ensuring continuous data collection.

Synchronized Video & Data

Integrated radar and camera system collects synchronized overflow video and flow data for comprehensive event analysis.

Automatic Event Identification

Features automatic overflow detection via level threshold triggers, flow reversal detection, and velocity surge alarms.

Meteorological System Integration

Links with forecast systems to automatically enter high-frequency collection mode in anticipation of storm events.

Complete Event Recording

Logs start/end time, duration, cumulative overflow volume, and peak flow rate for each CSO event.

Multi-Level Alert System

Pushes alarms via SMS, mobile APP, platform pop-ups, and emergency command displays for immediate attention.

Automated Environmental Reporting

The system automatically generates annual and quarterly CSO discharge statistical reports formatted to meet standard environmental compliance requirements, simplifying regulatory reporting for drainage authorities.

System Capabilities and Outputs

Function	Description	Primary Benefit
Real-time CSO Monitoring	Continuous measurement at discharge points using Doppler radar.	Immediate awareness of overflow events.
Data & Video Correlation	Synchronized flow data and HD video recording.	Verifiable evidence for analysis and reporting.
Proactive Storm Coordination	Alerts and high-frequency mode triggered by weather forecasts.	Enables shift from reactive to preventive management.
Automated Reporting	Generation of CSO discharge reports in environmental formats.	Streamlines regulatory compliance and auditing.

Approach

How we implement intelligence into your infrastructure step by step.

Overflow Point Census and Site Selection

Conduct comprehensive census of combined sewer overflow discharge points in the jurisdiction, prioritize monitoring locations by overflow frequency and environmental sensitivity

Equipment Installation and Flood Protection

Install multi-band Doppler radar flowmeters at overflow points with flood-resistant mounting brackets and stainless steel protective covers for extreme storm conditions

Weather Linkage and Warning Configuration

Integrate meteorological forecast data, configure storm warning coordination rules, set multi-level alarm thresholds for water level and flow, establish emergency response plans

Platform Deployment and Data Integration

Deploy dedicated CSO monitoring platform, interface with drainage dispatch and environmental supervision systems, configure automatic overflow event identification and reporting

Operational Assessment and Continuous Improvement

Regularly analyze CSO monitoring data, evaluate network interception capacity and overflow patterns, propose network renovation and scheduling optimization recommendations