Objective:
Build a homemade treatment plant, to check how water purification is carried out and the different types of existing methods.
Material:
- A large transparent water bottle (1.5 liters).
- Scissors.
- Active carbon for aquariums (or volcanic rock).
- Gross sand.
- Gravel.
- Rack.
- Coffee paper filter.
- Plastic bits.
- Dirty water
Process:
- Cut the bottle separating a third of it from the mouth.
- With the plug in place, make a hole in the center of it.
- Place the part of the bottle that has the stopper on, inverted, inside the other part of the bottle.
- Go introducing in the part of the inverted bottle (the one with the stopper), successively and in this order, the following elements: Coarse sand, aquarium carbon, gravel, coffee maker filter, pieces of plastic, grid and pieces of plastic.
- Pour dirty water on top and wait for it to seep through all the arranged elements.
- Check the water that reaches the bottom of the bottle, once filtered.
A.- What elements are retained in the grid at the top?
B.- Describe how the water comes out of the lower end of the treatment plant.
C.- What mixture separation procedures does your treatment plant use?
D.- Investigate and expose what other methods exist to purify dirty water.
E.- Find out which treatment plant receives the wastewater from the area where you live and what method is used there.
F.- Where does the treated water end up in your area?
