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Difference between deionized water and reverse osmosis water

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Difference between deionized water and reverse osmosis water

Date : 1/23/2014
From : Steve

Question

Hi Amy, Can you help me understand the difference between deionized water and reverse osmosis water and where each is used?

Answer

The short answer is

Deionization : Is a process that uses chemical magnets that trade dissolved metals for water molecules. Mixed Deionization removes 100% of metals. Deionization only removed dissolved metals.

More info on deionization can be found here :

https://www.apswater.com/article.asp?id=321&title=What+is+DI+Water+

Reverse Osmosis uses a screen that allow water to pass through it but not dissolved metals. Reverse Osmosis removes roughly 95% or dissolved minerals but that number is an average. Reverse Osmosis removed dissolved meters, organic chemicals, Bacteria, particulated and pyrogens.

More information on Reverse Osmosis can be found here :

https://www.apswater.com/article.asp?id=39&title=About+Reverse+Osmosis+Systems

and here

https://www.apswater.com/article.asp?id=76&title=Reverse+Osmosis+Basics

and here

https://www.apswater.com/article.asp?id=169&title=What+are+the+Stages+in+my+Reverse+Osmosis+Water+system


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