Science Buddies: "Ask an Expert"

i have to make a model on rerse osmosis

Hi Smoran,

This is actually a very popular topic, and you can easily do a web search to come up with a ton of interesting and useful information. I like this site in particular:

http://science.howstuffworks.com/question29.htm

Quoting from the above link:

In reverse osmosis, the idea is to use the membrane to act like an extremely fine filter to create drinkable water from salty (or otherwise contaminated) water. The salty water is put on one side of the membrane and pressure is applied to stop, and then reverse, the osmotic process. It generally takes a lot of pressure and is fairly slow, but it works.

I hope this helps!

Shijun
Science Buddies Staff