Demineraliser Throughput Calculations

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Hi can anyone please point me to a good reference with worked through examples for demineraliser throughout calculation, the particular system I am looking at is a SAC degasser SBA configuration, thank you so much

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3 Answers

  1. Hi

    In addition to other comments, have a look at this link for quick tips:

    http://dardel.info/IX/index.html

    In my experience, I use this formula to estimate the exchange resin:

    15.43 X Total hardness (mg or ppm) X Debi of water needed (M3/Hr) X time between 2 regeneration time (hr) = A (grain)

    you can find a table in which you can find the relevant Vol of resin according to the "grain" you achieved. Suppose its B liters of Cation. (Strong Acid Cation Resin)=> regeneration is done by 80-120 gr per liter of resin, Hydrochloric acid.

    For full demineralization of water, you will need to have a weak base resin to remove carbonates the same amount of the Strong Acid Cation resin. then you will need to have Strong Base Resin for 45% more than the strong acid Cation or Weak base. for the regeneration of a strong base resin, you can use 80-140 gr per liter of strong base resin.

    About choosing the vessels, you can choose among the standard instruments in relevant tables on FRP vessels. I advise you to choose 30% more space for each vessel so that there is good water movement and you don't have to use compressed air stream to move the resins on the vessel in regeneration time.

    I hope you the best and success.

    A.Reyhan

     

  3. "Demineralization by Ion Exchange" by Applebaum