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Water Filtration for Developing Nations

AJAS · 2018 Environmental Engineering (inferred)

Jarrod Blaser

Overview

In the world today only .007% of the water is potable leaving 780 million people around the world without clean water. Therefore, the purpose of the project was to develop a water filtration system to purify water in small communities in developing nations that lack the infrastructure and resources to filter their own water. The goal was to make the filtration system practical, effective, and efficient. Qualitative experiments were performed with many substances to identify practical materials to be used in the filtration. Then research was conducted on bacterial removal substances to ensure safety of filtered water. Through the research and experiments, it was decided to use sand and activated carbon to filter the water in conjunction with wire mesh. These materials are readily available, while still being effective and efficient at filtering. The sand removes particulate matter and some pathogens from the water. Then the activated carbon removes harmful organic materials, pesticides, herbicides, chlorine ions, some heavy metals, and colors and odors from the water. Experiments were conducted to find the optimal amount of sand for removing particulate matter among other things. Additionally, experiments were conducted to ensure water quality after filtration, and finally experiments to prove that the water was safe for consumption were performed. In order for the filtration system to be practical, it was designed like a set of drawers. This way the filtration substances can be removed and replaced or reactivated when necessary instead of crafting an entirely new system. This filtration system can filter large quantities of water not only for drinking, but everyday use in communities without a more complex filtration system.

Competition history

  • AJAS 2018 Category not listed

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Source: AAAS Annual Meeting (Confex) / American Junior Academy of Science

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