In Water this unit, our project was to design, create, and explain a water filtration system. I am proud of my water filter because it made my water cleaner and safer for a very cheap price, containing things that a easy to find and that most people already own.
Materials
Process
1.Take a large plastic bottle and flip it upside-down.
2.Cut the bottom off a large plastic bottle bottle, about 1 inch up.
3.Take a square of cotton and stuff it as far as it will go to plug the inside of the opening to the bottle.
4.Pour in about 2 inches of charcoal on top of the layer of cotton.
5.Take another piece of cotton and layer it on top of the charcoal.
6.Pour in about 2 inches of sand on top of the cotton.
MDS, Water Filtration, 2016.
How does it work?
The water will first encounter the layer of sand, which will filter out the larger sediments and pollution. Next, it will run through the cotton, which will keep the sand from running through, and separate silt and other smaller particles. Then, It will pass through the charcoal, which filters out viruses and other microorganisms, and, again a layer of cotton, which will separate the charcoal and other particles from the water.
How does it compare to groundwater filtration?
Just like groundwater filtration, this will filter the water, and not add any other chemicals or particles to the water.
pH results
MDS, pH results, 2016.
After I conducted the experiment, I realized that the sand I used, which was made for aquariums, had basic sand to balance with the nitrates in the water, so the pH test is off. However, based on the smell and color, the filter did make the water cleaner.
Observations
It took about two minutes for the water to run completely through the filtration device.
The water took the longest amount of time to run through the charcoal
The color of the water started off slightly green, and ended up clear.
The smell started off very sour and like rotting plants. After, it smelled like normal water.
Materials
- Scissors
- 2 liter bottle
- A 2 ft x 2ft square of cotton
- 1 cup of plain sand
- 1 cup of activated charcoal and ash
- Large plastic container
- Packing Tape
Process
1.Take a large plastic bottle and flip it upside-down.
2.Cut the bottom off a large plastic bottle bottle, about 1 inch up.
3.Take a square of cotton and stuff it as far as it will go to plug the inside of the opening to the bottle.
4.Pour in about 2 inches of charcoal on top of the layer of cotton.
5.Take another piece of cotton and layer it on top of the charcoal.
6.Pour in about 2 inches of sand on top of the cotton.
MDS, Water Filtration, 2016.
How does it work?
The water will first encounter the layer of sand, which will filter out the larger sediments and pollution. Next, it will run through the cotton, which will keep the sand from running through, and separate silt and other smaller particles. Then, It will pass through the charcoal, which filters out viruses and other microorganisms, and, again a layer of cotton, which will separate the charcoal and other particles from the water.
How does it compare to groundwater filtration?
Just like groundwater filtration, this will filter the water, and not add any other chemicals or particles to the water.
pH results
MDS, pH results, 2016.
After I conducted the experiment, I realized that the sand I used, which was made for aquariums, had basic sand to balance with the nitrates in the water, so the pH test is off. However, based on the smell and color, the filter did make the water cleaner.
Observations
It took about two minutes for the water to run completely through the filtration device.
The water took the longest amount of time to run through the charcoal
The color of the water started off slightly green, and ended up clear.
The smell started off very sour and like rotting plants. After, it smelled like normal water.
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