Purification Playground: A Sustainable Public Architecture Prototype for Interactive Water Treatment Spaces
Transforming water treatment into an interactive playscape—where sustainable public architecture meets learning and leisure.
Project by Pitak Asavesna
People's Choice Award entry of Ripple
In a world grappling with the environmental cost of urban development, Purification Playground reimagines essential infrastructure through the lens of sustainable public architecture. Designed by Pitak Asavesna, this striking intervention reframes water treatment facilities as interactive, educational, and joyful spaces.
Often hidden from sight, water treatment systems are typically treated as back-end utilities. This project takes a radical departure by positioning water purification at the heart of public engagement. Located along a rocky waterfront, the playground introduces an architectural typology that is transparent, performative, and participatory.
The design is guided by three water modes—dynamic, passive, and active. These are choreographed into the landscape to produce a multisensory experience. Visitors move through cascading water walls, quiet reflection zones, and kinetic installations that make the invisible purification process tangible. In doing so, the project merges environmental awareness with leisure, transforming a civic necessity into an architectural destination.


Programs include:
- Surface Stream and Floating Flood for immersive engagement
- Fast Fountains and Drizzle Ducts that visually communicate water flow
- Slithering Street and Turbulent Terrain to enhance spatial play
- Purifying Pond and Pool Portal where filtration meets recreation
The design leverages transparency both literally and conceptually. Glass structures reveal the inner workings of water systems, while circulation routes guide visitors through the layers of filtration and flow. The architecture becomes a living diagram—one that educates without didacticism.
What sets Purification Playground apart is its commitment to human-environment symbiosis. It not only treats water but also treats architecture as a medium for connection. Here, play and purification exist in harmony, offering a new vision for how civic infrastructure can elevate public consciousness through form, flow, and function.
This is not just a playground or a water plant—it is a prototype for future waterfront design that blends ecological performance with urban delight.


