Water filter projects

During these last weeks, in Technology subject we've been building some water filters in order to try to solve one of the main ecological problem now addays: the water scarcity.
I've learned many things from my project and from my classmates' presentations.
97% of the total water in our planet is in the sea, so it's salty. A 2% of the water is located in glaciers, so we can't drink it. And only a 1% remaining is fresh water, and a lot of this 1% is polluted,. There are many countries that have large quantities of polluted water, like Zimbawe, Republic of Congo, Senegal, Qatar, Singapour, Cyprus... Polluted water can also cause illesses like Typhod fever and Polyomielitis.

To build this water filter we've used very simple materials. As filters we have used stones, cotton, gauzes and sand, in order to not allow dirt pass through. We've used a plastic bottle of 1,5 l as a container, and the stopper of the bottle as a funnel to carry fresh water to the container below.

                           

Stones Sand Bottle



During the process we had some problems:

-We needed to take out all the sand because it went down the bottle and mixed with stones. We put a gauze between them in order to separate them and solve this problem.


While making this project I've learned many thing and I think I've improved my knowledge about water scarcity.