600m³ Sponge City Rainwater Harvesting Reuse System | BYD Zhengzhou Airport Zone Project

Zhengzhou Yayuan team assembling PP rainwater collection modules for rainwater harvesting system

Zhengzhou Yayuan Technology: Phase I of 600m³ Sponge City Rainwater Harvesting & Reuse System Project at BYD Zhengzhou Airport Zone Successfully Completed Zhengzhou, Sep 21, 2026 — Recently, Zhengzhou Yayuan Rainwater Utilization Technology Co., Ltd. (referred to as Zhengzhou Yayuan Technology) announced the milestone progress of its 600 cubic meters sponge city rainwater harvesting and […]

Zhengzhou Yayuan Technology: From Rainwater Harvesting to Intelligent Irrigation, Dual‑Driving Opens a New Chapter for Sponge Cities & Smart Agriculture

Nanchang sponge city construction and ecological water environment improvement

Amid the accelerated integration of green development and smart agriculture, Zhengzhou Yayuan Technology (Zhengzhou Yayuan Rainwater Utilization Technology Co., Ltd.) has completed its strategic upgrade from a single‑supplier of rainwater harvesting systems to a comprehensive solution provider for “Sponge City + Intelligent Irrigation”. Adhering to the philosophy of deepening traditional industries and refining new tracks, […]

Vertical Subsurface Micro-Ecological Filter Bed | Sponge City Rainwater & Rural Wastewater Purification System

Vertical subsurface micro-ecological filter bed cross-section diagram, layered filter media for sponge city rainwater and rural wastewater purification

Application Scenarios: Sponge City rainwater purification, rural domestic sewage treatment (widely used vertical subsurface flow ecological filtration system) Working Principle Wastewater and rainwater infiltrate vertically from top to bottom. The system achieves water purification through three core mechanisms: filter media biofilm attachment, microbial degradation, and plant root absorption. Layered anaerobic, anoxic, and aerobic zones are […]

Rainwater Infiltration Channel —‑ Detailed Introduction for Sponge‑City Construction

PP plastic rainwater infiltration channel for sponge‑city underground stormwater drainage system

Rainwater infiltration channel is an effective underground storm‑water management facility widely used in sponge‑city construction. It collects surface runoff and seeps rainwater into surrounding soil to recharge groundwater, relieve municipal drainage pressure and purify stormwater. This guide explains its definition, components, types, core functions, key design points, applicable scenarios and maintenance precautions.

Let Cities Breathe: Sponge City Rainwater Harvesting Project in Kaifeng

Kaifeng Railway Station Square sponge city rainwater harvesting project

This case study presents the sponge city renovation project at Kaifeng Railway Station Square. Adopting high-strength PP rainwater harvesting modules, the system effectively eliminates urban ponding and waterlogging, stores rainwater resources, and supports green, sustainable urban transportation hub construction.

Infiltration Trench – The “Green Guardian” of Urban Flood Prevention

Rainwater infiltration trench for urban flood prevention and sponge city construction

The rainwater infiltration trench is an eco-friendly green facility for urban flood control and stormwater management. It effectively reduces urban waterlogging, replenishes groundwater, and delivers durable, cost-effective drainage solutions for municipal roads, residential communities, commercial parks and urban green spaces.

Zhengzhou Yayuan Technology Ships 14-Inch Valve Boxes to Xinjiang, Supporting Western Sponge City Development

17.5-meter trailer loading 14-inch valve boxes at Zhengzhou Yayuan Technology factory for Xinjiang shipment

Zhengzhou Yayuan Technology has successfully shipped a batch of 14-inch square valve boxes to Xinjiang aboard a 17.5-meter trailer departing from Zhengzhou Airport Economy Zone. Made from high-strength UV-resistant plastic, these valve boxes offer a lightweight, durable, and easy-to-install alternative to traditional brick valve pits, with a grass-green finish that blends seamlessly into park and garden landscapes. Designed for large manual valves, pressure reducing valves, and filtration equipment, the 14-inch model is well suited to Xinjiang’s large irrigation districts and municipal infrastructure needs. This shipment reinforces Yayuan Technology’s growing presence in western China, following the establishment of an office in Aksu Prefecture, and underscores the company’s role as a National High-Tech Enterprise supporting sponge city and water-saving initiatives across the Belt and Road region.

Why Backwashing Pipe Systems Are Crucial for PP Module Rainwater Retention Tanks in Sponge City Construction

Installation of backwashing pipes for Sponge City rainwater harvesting modules

In Sponge City construction, installing a backwashing pipe system in Polypropylene (PP) modular rainwater retention tanks is essential for ensuring long-term operational efficiency. Key reasons include: 1. Preventing Sedimentation and Clogging Stormwater runoff carries sand, silt, suspended solids, and other impurities into the retention tank. Over time, accumulated sediment reduces the tank’s effective storage capacity […]