Tip - Water Purification - HowStuffWorks

Published 9 years, 3 month(s) ago | Submitted by Draumo

Water purification takes place over the course of six steps. Learn about the steps in the water purification process and why purifying water is important.
Tags: water purification, purifying water, potable water

For further reading: http://science.howstuffworks.com/environmental/earth/geophysics/h2o4.htm

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Posted: 9 years, 3 month(s) ago

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