2025 Urban Stormwater Management Solution

Flangco Water Group

Conference

Against the backdrop of accelerated urbanization and intertwined challenges of climate change, stormwater management has emerged as a critical proposition for urban sustainable development. At the 2025 Annual Conference of the China Water Association, Flangco Water made a stunning debut with its comprehensive urban stormwater management solutions, not only bringing technological innovations to the industry but also reimagining the future landscape of urban stormwater management.

NO.1 Research and Development Background

Urban stormwater Management: Urgently solvable Thorny Issues

In recent years, many urban inland rivers have been troubled by dry seasons and initial rain interception. Incomplete interception of combined sewer systems and arbitrary discharge from stormwater pipes have caused enormous pollution to urban water ecosystems.

Up to now, many cities have gradually promoted the rain-sewage diversion project. Although sewage has been diverted, the pollution caused by initial rainwater cannot be ignored. Data shows that the COD concentration in initial rainwater is 242-499 mg/L, SS is 127.6-324 mg/L, TN is 30.3-54.5 mg/L, and TP is 2.3-3.86 mg/L, exceeding the first-level standard in the Comprehensive Sewage Discharge Standard (GB8978-1996).

Overall, the path to governing initial rainwater remains a long and arduous task. Against this backdrop, it has become an industry consensus that stormwater management should shift from "end-of-pipe treatment" to "source control and smart collaboration."

NO.2 Great achievements come to fruition

Seven Modules: Building a"Smart Matrix" forstormwaterManagement

To help cities better address stormwater challenges, Flangco Water has proposed a comprehensive urban stormwater management solution that introduces a radar rain measurement + intelligent scheduling scheme. Different from traditional measurement methods, radar rain measurement starts counting rainfall during the precipitation stage, sends data to terminal control equipment before surface water accumulation occurs, and pre-allocates underground redundant space to formulate response strategies before flood disasters happen.

This solution covers seven major components: intelligent interception, stormwater storage and regulation, pipeline dredging, overflow pollution control, sealing systems, integrated devices, and large-flow flood control pumps.

1. Intelligent interception

Based on the design of rain-sewage diversion wells, the solution is equipped with high-precision radar level gauges and bidirectional calibration rain gauges to achieve precise pollution interception and automated operation. Combined with AI algorithms and real-time databases, it also has functions such as pollution early warning.

2. Stormwater storage and regulation

At the end of the pipeline network, sewage interception and storage tanks are set up to temporarily store combined sewage and initial rainwater, reduce overflow pollution, and protect the ecology of the receiving water bodies.

3. Dredging of pipe network

An innovative "four-stage" flushing mode is adopted, which requires no external water source and supports three control methods: automatic, manual, and remote. It flexibly adapts to on-site needs, making pipeline dredging more efficient.

4. Overflow Pollution Control

Through the three-stage management of "early closure, mid-discharge, and emergency discharge", pollutants are accurately intercepted to ensure rain-sewage diversion. It also enables rapid flood discharge under extreme weather conditions, safeguarding urban safety.

5. Sealing system

It is "invisibly" installed at the entrance of underground facilities with zero protrusion on the ground, achieving both safety and aesthetics.

6. Integrated device

By integrating data from rain gauges, level gauges, and turbidity meters, it can intelligently determine the rainfall stage, achieve precise diversion of sewage and rainwater, and reduce the load on the sewage network.

7. Flood prevention pump

• Strong flow capacity,  Moderate head

• Flexible mobility,  Sturdy and durable

• Simple operation,  Wide adaptability

NO.3 Looking ahead

Flood control and drainage: painting a blueprint for urban resilient development

Flangco Water's comprehensive urban stormwater management solution has not only significantly enhanced urban flood control and drainage capabilities but also achieved the sustainable utilization of stormwater resources and a virtuous cycle of urban ecosystems.

Through scientific and reasonable planning and design, the collected stormwater resources are purified and then used in non-potable water fields such as urban greening irrigation, road cleaning, and landscape water replenishment, effectively alleviating the pressure of urban water shortages. At the same time, the rational utilization of stormwater resources has also promoted the restoration and improvement of urban aquatic ecosystems, increased wetland areas, provided more suitable living environments for animals and plants, and injected vitality into the city.

Indeed, Flangco Water's newly launched comprehensive urban stormwater management solution has reshaped the civilized contract of "symbiosis between humans and water" in cities. In the future, Flangco Water will continue to enhance product quality with a pursuit of excellence, optimize the service system guided by user needs, and write a new chapter in urban resilient development with ingenuity.