RO/DI Question

[JP Reef]

I came across an article yesterday that says that my water authority is evaluating moving to peracetic acid for water treatment instead of chlorine/chloramine. My question is how is this going to affect the RO/DI membrane and filters? From the limited info I could find it looks like it breaks down into H20 and CO2, but where in the process?

 

[Big G]

@Randy Holmes-Farley

 

[JP Reef]

Found an article from the EPA, but it still didn't elaborate on the chemical reactions. It looks like this is being evaluated to replace chlorine/chloramine. My water authority is building a demonstration plant to test, and then get state approval to use. This looks like it will be in the very near future that this is going to replace our chlorine/chloramine. Trying to get a head start so it isn't a surprise.

 

[Randy Holmes-Farley Verified Community Expert]

I don't think it will impact with the need for, or use of, normal RO/DI systems.

 

[Randy Holmes-Farley Verified Community Expert]

Here's a nice blurb on how peracetic acid works:

https://www.lenntech.com/processes/disinfection/chemical/disinfectants-peracetic-acid.htm

 

[Randy Holmes-Farley Verified Community Expert]

It is broken down by the carbon filter, jut as chlorine is:

http://pubs.royle.com/article/Proxi...ent_of_Wastewater/1812262/225469/article.html

"Peracetic acid is not stable at alkaline conditions and decomposes rapidly when in contact with activated carbon and metal salts."

 

[JP Reef]

Thanks Randy. I was specifically looking for if carbon took care of it. I am hoping this allows our RO/DI systems to be more efficient.