acid rain working model for science project exhibition in simple and easy steps diy howtofunda

Making waste water treatment working model, in this course introduces learners to the principles and processes of cleaning and reusing wastewater through simple, practical models. Students will explore different stages of treatment, including sedimentation, filtration, aeration, and disinfection, and understand how each step removes impurities. Using low-cost materials such as sand, gravel, charcoal, PVC pipes, and containers, participants will build a functional miniature wastewater treatment plant that demonstrates how polluted water can be purified. The course emphasizes sustainability, water conservation, and the importance of reducing environmental pollution. Learners will also study real-life applications of wastewater treatment in urban and rural settings. By the end, participants will gain both technical and creative skills to design models suitable for science fairs, classrooms, and awareness projects that promote clean water and sustainable living. howtofunda