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June 1998

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Subject:
From:
"Robert E. Mesick" <[log in to unmask]>
Reply To:
Date:
Tue, 30 Jun 1998 11:00:42 -0700
Content-Type:
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text/plain (54 lines)
I said:


> To generalize.  Anion resins, 14kgr/cu.ft.  Cation resins, 18-22 kg/cu.ft.
> I think its 17.1 ppm /kg.  Actual capacity depends on regenerate used
> (4,6,8,or 10 lb/cu.ft) and ion mix.

In line 2, it should be 17.1 g/cu.ft.

To figure, divide your ppm by 17.1, that will give you grains.  Divide grains by
1000 and that will give you kilograins.
400/17.1/1000 = .0234 kg

At 10 gpm
= .234 kg/min or

14.04 kg/hr

Need to know the ration of anions to cations now.  Assume 50/50

Now 7 kg/hr cation, and 7 kg/hr anion.  Assume resin capacity of  14 kg/cu ft
anion and 21 kg/cu. ft cation.

Require 1/3 cu.ft cation resin per hr
Require 1/2 cu. ft anion resin per hr.

Double it to be safe and calculate for one regen each 12 hrs.


Best Regards,

Bob Mesick





Remco Engineering
Water and Wastewater Treatment Systems
http://www.remco.com
[log in to unmask]

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