We are doing research trying to concentrate glycol up to about 8-10% using an RO unit. Just wondering if anyone knows of anyone who is currently doing this that we can contact for more information on how to go about it. At the same time we are removing glycol from .05-.2% EG solution and getting it down around 100 ppm. Our problem with both is that it's taking too long to do and we end up having to do multiple passes through our membrane to get our expected results. This could possibly be a pressure problem? or membrane itself?
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gylcol removal and concentration using RO
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