Water Filter

Making A Homemade Water Filtration System

By: Patrick Feketics

Hypothesis

I think that the water filter will purify and clean the water because I’ve seen this happen before.

Procedure

1. Create a water filter

2. Put different types of water in the top (salt water, chlorine water, etc. and make sure water is contaminated)

3. test water before the water is put in the filter

4. before you do it, use a pool testing strip and see what chemicals or effects it has

5. take another tester and put it where the water comes out

6. compare the two water samples

7. modify filter if needed

8. repeat 5-10 times for an accurate result

Abstract

Making A Water Filtration system

The project I have decided to do is a water filtration system. I am trying to figure out if I can make a working water filtration system with only simple materials that are easy to get. I chose to do this because I like to build things and I find engineering fun. I also like to re-do and rebuild to make them perfect.

For my experiment I made a compound of 3 layers of materials while they were being compressed. I collected my data from taking 1 design and running 1 test of each contaminated liquid through it. My first design had sand on top, activated carbon in the middle, and sand on the bottom with a coffee filter at the bottom. I also poked a hole in the cap of the bottle with a drill, so that when the water goes through the coffee filter nd starts to drip slowly into the finish bucket. My second mixture had activated carbon on the top, sand in the middle and gravel on the bottom. Then my third test had activated carbon on the bottom, sand in the middle, and gravel on top which lead to a success.

My first 2 designs were a fail, but my third design was successful. I used pH strips before the water went through and then after. My first design (sand on top, activated carbon in the middle, and sand on the bottom) had bad results, where the design was actually making the water worse. Chlorine’s normal salt level was 7.5 and for freshness it was also a 7.5. With Design 1, Chlorine’s freshness was 9.0 (Max) and 9.0 (Max) for salt. Rain water’s salt was 8.5 and freshness was 8.5. Salt water’s salt was 7.0 and freshness was 7.0. I also used bottle water as a control, and the salt was 6.0 and the freshness was 6.0. Almost the same results went for the second design. The third design was a complete success purifying every sample.

My hypothesis was correct. I learned from this project a lot, like how to destroy and redesign just like the engineering process states. My experiment was accurate because the water was purified at the end. My experiment could be improved by having more tests and more types of contaminated water.

Conclusion

In conclusion, my 3rd test was a success and the others were not. I think my experiment was very accurate because my experiment had reliable sources to look of off and I was very careful carrying out the experiment. If I had to make my experiment even better, I would add more liquids to test and make a larger filtration device.

Data & Graphs

Chlorine:

Rain water:

Salt Water:

Bottled water: