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Resin Bead Treatment

08/18/2009 8:57 PM

I have a de mineralized water treatment plant. There I use mixed bead resin containing cation and anion resin. recently I changed the resin bead with new resin. But after change the conductivity of water increased. I tested that after passing the resin bead conductivity rises almost double (before passing 170, after passing 300). What may the reason?

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#1

Re: Resin Bead Treatment

08/18/2009 9:10 PM

How long have you let it run? Are you sure all the water in the lines from the outlet of the resin beds has been run out and replaced with freshly processed water?

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#2

Re: Resin Bead Treatment

08/18/2009 10:32 PM

What was the reason you replaced the old resin? They were exhausted? Did you purge the system after replacement?

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#3
In reply to #2

Re: Resin Bead Treatment

08/18/2009 11:18 PM

Look like a recycle head, you do! Hehmmh, hehmmh!

But better than the dark helmet/respirator/make-your-voice-sound-scary thing you wear it is!

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#8
In reply to #3

Re: Resin Bead Treatment

08/20/2009 9:22 AM

why do you even put an comment out there if it is not helpful

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#12
In reply to #8

Re: Resin Bead Treatment

08/20/2009 7:39 PM

"why do you even put an comment out there if it is not helpful"

Why do you want to know?

What you are really saying to me is, "I don't like it when you say things that do not pertain to the subject". This is not a question. You wanted to make a statement, but couldn't come out and say it directly, you chicken!

Your problem, not mine.

By the way, have you ever heard of punctuation?

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#4

Re: Resin Bead Treatment

08/19/2009 4:01 AM

Did both resins get changed?

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#5

Re: Resin Bead Treatment

08/20/2009 1:16 AM

Usually directly after a replacement of the resins there is an increase in the conductivity due to "bleeding" of the resins. Discard the first quantities until the conductivity is at normal level again. If the conductivity still remains high then check if - you were supplied with the right resin - you received regenerated (= active) resin or was it also a used one - the cationic and anionic resins are equally mixed in the right ratio Best regards ALPL

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#6

Re: Resin Bead Treatment

08/20/2009 3:04 AM

http://www.mech-engineer.blogspot.com/2008/12/demineralizers.html

bioramani

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#7

Re: Resin Bead Treatment

08/20/2009 5:39 AM

Jewel,

Did you change the resins to completely new resins i.e different make or were they just replaced with the same type & manufacturer of resin? I ask this because the resins selected will depend on the feedwater quality i.e resins need to be selected based on the feedwater as there is no one resin that will work for all applications.

Kind Regards

Mr. W.A Snow

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#9

Re: Resin Bead Treatment

08/20/2009 9:34 AM

It's just a thought, but you may have installed cation resin in the hydrogen form and anion resin that is in the chloride, non-regenerated form. With this condition, the raw water passing through the bed of mixed resins will only react with the cation resin in which the cation component in the feed exchanges for the hydronium (acid, H+) ions in the cation resin. This would cause the increased conductivity that you report as acid per part has a higher conductivity than the corresponding salt. You can easily test for this by measuring the pH of the product. It would be quite lower than the feed.

This post came up previously. I think that you should define the process more clearly. I recall something of an 8" column being used. Are you regenerating these resins in place or is this a design in which the columns are removed and regenerated off-site?

More information is necessary in order to determine the source of your problem.

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Anonymous Poster
#10
In reply to #9

Re: Resin Bead Treatment

08/20/2009 10:23 AM

I am not an expert in this, but this might help.

My "deceased" neighbor was closely involved with the developpement of the lithium battery, i recall that he mentionned something about polymers between lithium.

I beleive resin is in the polymer family so you could be in some form building yourself a battery from a chemical reaction between the existing and the new, compatibility, or non-comp. . Is there H produced ? That was one of the major problems with the developpement of lithium batteries.

Would static be involved. Is it 100% demineralized water ?

This is interesting in that the epoxies are often used in marine environment your experiment may help. I was planning to use a demineralize water bagging for long term marina salt water storage for my catamaran.

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Anonymous Poster
#11

Re: Resin Bead Treatment

08/20/2009 5:07 PM

Is the mixed bed still mixed? Check viewports for resin ratio. Possilby the entire botton of the column is cation, causing the poor performance. We recieve about 10 calls a week about this at my workplace. Yes, I am a resin supplier.

Best is to email me water quality and I can give you a full report on how well your demin system should work.

whose resin are you using by the way?

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ALPL (1); Anonymous Poster (3); bioramani (1); DVader1000 (1); flynnstar (1); HoleInTheSnow (1); Mikerho (3); PWSlack (1)

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