For my science project how can i make a device that turns dirty water into clean water? a simple device?
Saturday, October 3rd, 2009 at
6:09 pm
You are currently browsing comments. If you would like to return to the full story, you can read the full entry here: “For my science project how can i make a device that turns dirty water into clean water? a simple device?”.
Tagged with: clean water • dirty water • google • science project • script type • text javascript
Filed under: Water Filter System
Like this post? Subscribe to my RSS feed and get loads more!
If the water is dirty due to biological contaminates (algae or bacteria or animal wastes) you can super heat the water in a pipe using the sun. Basically you focus the sunlight across an entire 100ft length of plastic tubing. The sunlight will literally cook off the biological contaminates and give you clean water at the other end. This only works for biological contaminates, it does not work on chemically contaminated water.
I hope this helps. Good luck.
Just use a very fine screen or cloth over the top of a cylinder, fill the cylinder with activated charcoal (like for fish tanks) punch holes in the bottom of cylinder to let water through, and pour. It would be best to use a long, narrow cylinder.
You could go to hardware and get the smallest diameter stove pipe they have, or a piece of 2" or so diameter PVC water pipe. I don’t know where you would get screen fine enough to block some solids, but if you could find cheese cloth somewhere, or get an old sheet with a high thread count and put a piece of it on top and bottom. This should work if the water’s not too dirty. Good luck.
You want to be able to drink it? What I would do is get a piece of plastic PVC pipe that is about 1 1/2 to 1 inches in diameter and 8 inches long, get a cap for one end. Drill a hole in the cap. Get some coffee filters and cut one to just fit inside the cap. Put the cap with the filter inside it, onto one end of the tube, next get some activated charcoal from a pharmacy and put about two inches of into the end of the tube that is open, place a coffee filter over that by either cutting it to size or packing it in on top of the charcoal. Next get some sand and put about an inch of sand on top of that filter, then put in another filter, then you need some aquarium rock onto of that. place a window screen piece over that and you have a filter. This probably wont make the water sparkling clear though. You need to photograph your steps and test it when you are done. If you want to be able to have water that you can drink, use this filter to run the dirty water into a flask that you can boil the water in, then use a distiller cooling tube to covert the steam back to water and you will have almost perfect water. the filter is used to catch all the big debris that is in the water and the charcoal takes out the chemicals like chlorine. The filter wont last forever though. IT has a life span that is dependent on how dirty the water is and how much you run through it.
OR…you can buy these:
http://www.campingsurvival.com/milwatpurtab.html
You need to pour the water through a series of filters and then boil it.
1) Pour it through a Coffee filter to get rid of big stuff.
2) Pour it through an "air filter":
Yours needs to contain: (look on box) a 0.4 micron filter: to filter out bacteria and anything bigger
An activated carbon filter : to trap and thus remove charged organics
( chlorine, sediment, and volatile organic compounds)
Now you are left with charged minerals: and here is the hard part.
3) To remove charged minerals you will need charged beads: You will have to get them from a science lab at your school. Basically what you will do is mix the rinsed (in clean water) beads with the almost clean water, swirl them, and then get them out of the water with your coffee filter. You will have to do this twice: once with positively charged beads, and then once with negatively charged beads.
Now you are left with viruses and other bugs smaller than 0.4 microns. These can be killed by boiling.
4) Boil the water. Let it cool.
This is your "clean" water.
It probably really IS pure. But dont drink it! (just in case)
Well – the others have all concentrated on filtration techniques.
The other obvious way to purify water is to distill it…
First filter the water through gauze to remove any large particles.
Then boil the water in an alembic:
http://en.wikipedia.org/wiki/Alembic
They’ve been used for hundreds of years, and shouldn’t be difficult to construct.