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April 2013

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From:
Ed Popielarski <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Ed Popielarski <[log in to unmask]>
Date:
Tue, 30 Apr 2013 22:58:07 +0000
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Steve,

I did a little research on the internet (everything on the internet is true... the internet says so) and determined lactose is categorized as a disaccharide which is readily adsorbed by activated carbon. It is commonly used as a binder to make pharmaceuticals, including simple aspirin.

I would consider putting 2 carbon tanks (or more) in front of the DI columns separated by a particulate filter to stop any carbon particulates from infiltrating the DI.

To verify it's efficacy, you might want to run a controlled sample through the carbon tanks, i.e., dissolve a handful in your sump pump reservoir take a sample (baseline), run it through the carbon (to drain) and sample afterward. Bear in mind the lag time from the front end of the first carbon tank to the output of the second tank so you may want to take several samples to be sure you got the "slug". You can perform the "analysis" yourself using this method: http://en.wikipedia.org/wiki/Benedict%27s_reagent

I'm not a chemist, but this makes sense to me... any experts that might add/subtract from the above?

Ed Popielarski
Engineering Manager


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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Monday, April 29, 2013 11:56 AM
To: [log in to unmask]
Subject: [TN] Bivar Diss-O-Pads and closed-loop DI systems

Hi All,

 

We're getting ready to change our cleaner out with a closed-loop system, and I was wondering if the use of Bivar Diss-O-Pads will harm the DI beds? I have a call into Bivar, but I thought I would ask TechNet while I was waiting.

 

I know I'm going to have to change the water soluble mask that is currently used to one that doesn't harm the DI beds, but I don't know about the Diss-O-Pads...

 

Steve Gregory


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