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. Author manuscript; available in PMC: 2018 Jun 21.
Published in final edited form as: Prog Polym Sci. 2016 Nov 10;81:209–237. doi: 10.1016/j.progpolymsci.2018.01.004

Figure 6.

Figure 6

SEM of a thin film composite RO membrane, showing the larger scale roughness of the ESPA2 membrane by Hydranautics/Nitto, with a typical active layer pore radius of 0.267 nm. Modified from [59, 91], Copyright 2015, reproduced with permission from Elsevier.