Yingyuan Technology Pioneers the Shanghai Songjiang Dongjing Project to Establish a Premier Benchmark for Green Sponge Cities

Executive Summary and Project Introduction

In an era where urban sustainability and ecological resilience are more critical than ever, innovative infrastructure is paramount. Recently, Jiangsu Yingyuan Sponge City Technology Co., Ltd. achieved a significant milestone by successfully delivering a highly efficient, state-of-the-art rainwater collection and utilization system. This landmark installation was specifically designed and deployed for the Lot 01-13 project, located within Unit STS30003 of Dongjing Town, Songjiang District, in the bustling metropolis of Shanghai.

By leveraging its proprietary, self-developed rainwater module storage tank technology alongside a highly sophisticated intelligent control system, Yingyuan Technology has fundamentally transformed the localized ecological landscape. The project has dramatically elevated the region’s capacity for rainwater resource management, setting a robust new industrial paradigm for the ongoing "Sponge City" construction initiatives across the economically vital Yangtze River Delta. This development not only mitigates the risks of urban flooding but also provides a blueprint for integrating natural hydrological cycles into high-density urban environments.

Engineering Excellence: Precise Material Selection Ensuring the System "Never Collapses"

One of the primary challenges in modern urban construction is integrating massive water-storage infrastructures beneath areas that experience heavy daily traffic and immense surface pressure. To directly address the specific and rigorous requirements of high load-bearing capacity and unusually deep burial depths associated with this particular plot, Yingyuan’s elite expert team conducted comprehensive and rigorous on-site geological and architectural inspections.

Based on their exhaustive analysis, the team confidently selected the third-generation heavy-duty PP (Polypropylene) module as the foundational building block for the underground reservoir.

•  Advanced Material Science: These modules are precision-engineered and injection-molded from advanced block copolymer polypropylene (PPB) materials. This specific polymer matrix is renowned for its exceptional durability, impact resistance, and long-term chemical stability in subterranean environments.

•  Extreme Load-Bearing Capacity: The PPB material affords the modules an extraordinary degree of lateral compressive strength. More importantly, their vertical bearing capacity exceeds an impressive 40 tons per square meter. This massive structural integrity ensures that the system fully meets—and exceeds—the extreme heavy-load requirements demanded by the large surface parking lots and active traffic lanes situated directly above it, completely eliminating the risk of structural collapse or subsidence.

•  Maximized Volumetric Efficiency: Despite their fortress-like strength, the intricate columnar structure of these modules is brilliantly designed to provide a remarkable void ratio of up to 95%. In practical terms, this ensures that the absolute maximum volume of underground storage capacity is achieved within the minimal possible excavation footprint, optimizing land use and reducing earthwork costs.

A One-Stop, Full-Industry-Chain Purification Process

Water collection is only the first step; ensuring that the collected water is safe, clean, and immediately usable requires a comprehensive treatment strategy. Yingyuan Technology distinguished itself in the Songjiang project by providing a seamless, one-stop, full-lifecycle service that manages the water from the moment it hits the pavement to its final reuse. The holistic system is divided into three highly engineered phases:

1. Front-End: Zero-Power Interception and Filtration

The initial stage of the rainwater management cycle focuses on highly effective preliminary mechanical filtration without the burden of ongoing energy costs. The system utilizes a specialized interception basket combined with a first-flush rejection filter device. This mechanism operates entirely without the need for electrical power, relying instead on gravity and fluid dynamics to intelligently separate and discard the heavily polluted initial rainwater runoff (the "first flush") while capturing larger debris, leaves, and particulate matter.

2. Mid-End: High-Capacity Modular Storage

Once the initial impurities and highly contaminated first-flush waters are bypassed, the relatively clean rainwater flows seamlessly into the mid-end modular water storage system. Constructed from the aforementioned 95%-void-ratio heavy-duty PP modules, this underground reservoir acts as the heart of the "sponge," safely retaining massive volumes of water during peak storm events and effectively reducing the burden on municipal drainage networks.

3. Back-End: Above-Ground All-in-One Deep Treatment

To transition the stored rainwater from mere runoff to a high-standard, usable resource, it is processed through Yingyuan's proprietary above-ground, all-in-one deep treatment machine.

•  Rapid Ultraviolet Sterilization: The internal core of this integrated equipment features cutting-edge, high-transmittance quartz sleeve ultraviolet (UV) disinfection technology.

•  Maximum Efficacy: As water passes through the treatment chamber, it is subjected to intense UV exposure, achieving a highly efficient and thoroughly verified sterilization rate of 99.9% in a mere 1 to 2 seconds.

•  Ecological Closed-Loop Utilization: The deeply purified, high-standard water is then managed by an intelligent, automated pumping system. It is widely distributed for daily ecological maintenance within the lot, serving critical functions such as landscape irrigation, green belt hydration, and routine road surface washing. This successfully establishes a true, self-sustaining ecological closed loop of water resources.

Message from Executive Management: Co-building a New Habit of Water Conservation

At the core of Yingyuan Technology’s corporate ethos is a profound commitment to environmental protection. The company continuously pioneers new technological frontiers and drives industry innovation in direct response to the national strategic call to construct water-saving cities and drastically improve overall water resource utilization rates.

The executive management team views their technological deployments not just as infrastructure, but as a catalyst for societal change. "Our ultimate goal is to help 150,000 urban buildings develop fundamental water-saving habits," stated the Yingyuan Technology management team. "With unyielding professional quality, a strictly rigorous work style, and an endlessly dedicated spirit, the people of Yingyuan eagerly look forward to joining hands with communities and developers alike to create a healthy, sustainable, and highly comfortable new life within the framework of a modern sponge city."

Project Summary: Long-Term ROI and Low-Carbon Transformation

The successful implementation at the Songjiang Dongjing site stands as a testament to the power of modern environmental engineering. By relying on highly advanced system integration paired with a 24-hour unattended, fully automated operational matrix, the project has successfully constructed a highly resilient, rock-solid underground water storage infrastructure for Songjiang District.

Beyond the immediate ecological benefits, this automation and intelligent design significantly reduce ongoing labor and future maintenance costs, providing an exceptional long-term return on investment (ROI) for property developers and city planners. Looking ahead, Yingyuan Technology will continue to aggressively leverage its unique full-industry-chain advantages to actively drive the low-carbon transformation and sustainable evolution of the urban water treatment industry.

Are you ready to transform your development into a beacon of green infrastructure? Let us help you design the perfect ecological solution tailored specifically to your site's unique topological and architectural demands.

•  Contact Us Today: Call Yingyuan's dedicated national 24-hour customer service hotline at 400-0510-365.

•  Our Promise: Reach out to us to obtain your highly exclusive, fully customized rainwater collection and utilization system solution. Our engineering and support teams guarantee to provide you with a comprehensive and fully satisfactory technical reply within 2 hours of your inquiry.

About Jiangsu Yingyuan Sponge City Technology Co., Ltd.

Jiangsu Yingyuan Sponge City Technology Co., Ltd. is a high-tech enterprise covering the entire industrial chain, specializing in rainwater harvesting, utilization and management systems. As one of the few system suppliers in the industry capable of providing an integrated solution spanning R&D, production, design, sales, installation and after-sales service, Yingyuan Tech relies on its advantages as a source factory with 10 years of R&D and sales experience, and is committed to providing customers with the most cost-effective sponge city system solutions.