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View Full Version : Chasing the sweet out the ro with compressed air


Brian Ryther
07-15-2012, 02:28 PM
Has any one tried to push the sweet out of there ro with compressed air? I think it would save a lot energy. You would not have to boil the diluted concentrate. Would the compressed air hurt the membraines?
lew
07-16-2012, 05:37 AM
I see that Darveau has incorporated that thought into their new machines. Or whoever Darveau is selling Ro's for. It must work, just don't know the details.
Amber Gold
07-17-2012, 08:12 PM
What a great idea! I wonder how it's done, and if an RO can be retrofitted.

The compressed air saves lots of time/energy in all aspects of the RO'ing process...pushing permeate out when starting up, pushing sweet out when starting a refresh, pushing the perm. out when switching back to conc., and so on and so forth. I'm surprised it took a manufacturer this long to figure out an alternative method...glad they did though.
chipa
07-17-2012, 08:45 PM
Memprotec is the company that has the "air flush" system. it works very well and leaves very little sugar in the membranes.Saves time and permeate.
tuckermtn
07-21-2012, 08:11 PM
chipa - saw a very nice mempro tec with the air purge at Windswept Maples in Loudon today. Who is the dealer for mempro tec?

-Eric
collinsmapleman2012
07-21-2012, 08:16 PM
the dealer for memprotec is Darveau, a small canadian maple equipment dealer. the owner, stephan, is a very nice person to deal with and has several dealers in the US.
Amber Gold
07-22-2012, 03:21 PM
Eric, you were there. Larry Moore's a dealer.

Darveau makes nice tanks. Aluminum tube framed which makes them nice and light. My 4'x12'x3' tank I bought last year was easily off loaded and set in place by two people.
Alberto8100
08-11-2012, 05:22 AM
Use "Air Flush"system for it.It work very well.And the most important thing is that leaves very little sugar in the membranes as well as saves time.
maple flats
08-11-2012, 07:40 AM
How do you prevent contamination from the compressor? Do you use bottled nitrogen or something? Is a filter available to prevent oil, bad water or another contaminant for entering the RO? I actually have a food grade nitrogen tank, it needs refilling, but that might be the answer.