- Researchers: Charlotte Patricia Pical, Chou Yu-Hua, Jessica Clarisa Soekardi, Matthew Colin Iswara
- Level/Campus: P5 / BBS PIK
- Abstract: Every day, large amounts of water are used for production activities in factory, producing dirty wastewater that is usually thrown away. This project builds a working model of a Waste Water Treatment Plant that recycles dirty water through five natural filter stages: Big Stone, Small Stone, Coal, Sand, and Cotton. Each stage removes different sizes of dirt and impurities. The water collected at the end - labeled ""Pure Water" - is clean enough to reuse for watering the garden. This low-cost model proves that simple natural materials can solve real water waste problems, helping our cities become cleaner, greener, and more sustainable - fly aligned with the United Nations Sustainable Development Goals 6, 11, 12, and 13.
- Coach: Ms Leziel Salido Nierra
