Make Sponge City Tangible – Kaifeng Science Popularization Plaza Rainwater Harvesting Case | Zhengzhou Yayuan Technology
This case shows how Zhengzhou Yayuan Technology integrated a PP module rainwater harvesting system into Kaifeng Science Popularization Plaza. The underground storage system manages storm runoff and supplies reused water for irrigation and pavement washing. Different from ordinary municipal projects, this sponge facility serves as an open-air science exhibit, helping visitors visualize the full “infiltration, retention, storage, purification, reuse and discharge” cycle of sponge cities.