What did your group do today?
Our group starting planning and building all the projects after we did the experiments to see what filters out well. We are starting to build our actual filter but I think e might have to change the plan up a bit because it isn't very stable. We also tried to filter out the water with layers of cotton, rocks, pebbles, charcoal, and sand.
What methods did you use to remove bacteria?
We tried to heat up the water, but that didn’t work. We put some lime acid into the water, and tested it to see if it would get rid of bacteria. a small bit of lime juice goes a long way, because we put like 2ml in each beaker with water and it was nearly fully acidic. Next time we should try and put like a drop in and see if it balances the pH out.
What methods did you use to remove salt?
We tried to evaporate the water to get rid of the salt, but it didn’t work. Hina found an article that talked about freezing the water to get rid of salt, but we realised that we have a certain amount of time, and 30 minutes probably wouldn't be enough, but maybe we could still try it. I'm not sure what we will do to get rid of the salt next.
What methods did you use to remove sediment?
We used sieves and double towels mainly. This idea is very affective and gets rid of most sediment.
Would you drink your water after it has passed through your filter system? Why or why not?
Right now, this water is not something I would drink. It is not fully clean, but I think it is much better than how it started. We should still try and get rid of more that is in the water that isn't edible or good for your body. This is because we haven't removed salt from the water yet, as long as microbes, which is something you don't really want in your body.