I only skimmed that 8 pg paper, but it does not seem to address a maple RO design. It looks like a water treatment, maybe a desalination RO. For maple look at the many designs of those who have made them here, on this site. For example, I believe I saw only reference to brackish (salt water mixed with fresh water). That is not very closely related to a maple RO.
Most RO's (except for maple) keep the pure and dump the contaminated water, in maple we keep what they dump, because we have removed pure water and kept the concentrate which has the sugar in it. While We don't just dump the pure either, we use that to clean the equipment, from the RO, to the pans and all equipment used at the sugarhouse along with the barrels to be filled and all.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.
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