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The following animation explains the process of developing charcoal filtration systems using sand. It is a simple process that helps to remove many, but not all, pollutants in water that can otherwise cause health problems.

Scientific Animations Without Borders (SAWBO) is a university based program. SAWBO transforms extension information on relevant topics such as agriculture, disease and women's empowerment, into 2D, 2.5D and 3D animations, which are then voice overlaid into a diversity of languages from around the world.

All SAWBO animations are made freely available to anyone wishing to use them for educational purposes. Animations can be downloaded from a diversity of SAWBO channels and used on computers, tablets, cell phones, TVs, and overhead projection systems.

SAWBO’s animations are FREELY available for you to use them for educational purposes.


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