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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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EFFECT OF SPENT sulfurIC ACID USAGE FOR SAC REGENERATION IN A DM PLANT

Dear sir
What is the effect of spent sulfuric acid usage for strong acid cation regeneration in D.M.Plant for production of D.M.Water.

B SRAO
- Rourkela, India
October 1, 2009

I assume that you are talking about a DI unit. I think that the use of trash acid will not regenerate the media very well and will probably shorten the life span of the media.

James Watts
- Navarre, Florida
October 3, 2009

Hi. I agree with James that this won't work. What happens in regeneration is that you overwhelm the metallic cations that you have captured with hydrogen cations, until hydrogen occupies virtually all the sites. I don't see how you can do that with waste acid when you keep refilling those sites with metal cations.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 5, 2009

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