This week we finally did it! We finally figured out a way to filter out the metal solution. As you may have read in blog posts from previous weeks, our group has faced many challenges and ordeals in this short ten week period. However, during this class period, we engineered the most elaborate filter with the materials that we simulated that we would have in case of a nuclear war.
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| Finish Design |
Olivia and I (Laurynn) came up with this design after many trial and error attempts. We decided to add three new elements in this final design, those being orange peels, baking soda, and basil. We added these three materials because based off of previous research there are certain chemical properties that could help eliminate the metal in the solution. Although the orange peels did not work too well from the week before, we decided to test it out again and give it another try.
| Sand (mixture) [g] | Act. Charcoal [g] | Baking Soda | Regular Charcoal [g] | Sand (on top) [g] | Basil |
| Trial 1 | 88.3 | 1.4 | 8.1 | 55.2 | 226.5 | ---- |
| Trial 2 | 89 | 1.5 | 14.6 | 51.1 | 225.9 | 63.4 |
| Trial 3 | 94 | 1.1 | 12 | 52.4 | 220.1 | 60 |
We conducted three different tests with the new material and we found that the second test worked the best. So, the final construction of the prototype consisted of a layer of 89.3 g of sand and 1.6 g of activated charcoal mixed together above the filter paper, 14.6 g of baking soda, 51.1 g of regular charcoal, 63.4 g of finely chopped basil, 225.5 g of sand, and 6 slices of alcohol-treated orange peels.
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| Final design filtering out clean water |
After working on this project for ten weeks, it feels amazing that we were able to see our hard work pay off. It was truly, such a remarkable experience, to be fully immersed in this project and being able to use our minds in creative and critical ways.
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