https://www.desalwiki.che.unsw.edu.au/w/index.php?action=history&feed=atom&title=Standardised_RO_Testing 2026-08-13T23:42:18Z Revision history for this page on the wiki MediaWiki 1.39.10 https://www.desalwiki.che.unsw.edu.au/w/index.php?title=Standardised_RO_Testing&diff=800&oldid=prev 2015-08-21T02:07:23Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:07, 21 August 2015</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Work </del>in <del style="font-weight: bold; text-decoration: none;">progress</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The performances of high pressure membranes can be assessed with standard testing methods, recommended by the suppliers and available on their websites or product descriptions. Those methods generally involve a feed solution of 32,000 ppm NaCl and pressure of 55 bar for SWRO, and 2,000 ppm at 15.5 bar for BWRO. SWRO membranes have performances ranging between 99.6 - 99.9% NaCl rejection and a permeability of 0.45 – 0.94 L.m⁻².h⁻¹.bar⁻¹. While BWRO membranes have a performance that ranges from 98.5 – 99.8% NaCl rejection and a permeability of 1.3 – 7.4 L.m⁻².h⁻¹.bar⁻¹. Overall, there is a trade-off between salt rejection and permeability, with an increase </ins>in <ins style="font-weight: bold; text-decoration: none;">productivity resulting in a decrease in product quality. Additionally, RO membranes can be modified for a variety of requirements, including high productivity, high rejections, low energy, low fouling and high boron rejection. For comparison, NF membranes by the same manufactures have a NaCl rejection between 55 – 90% with a permeability of between 6.3 and 8.6 L.m⁻².h⁻¹.bar⁻¹.</ins></div></td></tr> </table>

imported>WikiAdmin https://www.desalwiki.che.unsw.edu.au/w/index.php?title=Standardised_RO_Testing&diff=799&oldid=prev 2015-03-28T20:51:16Z

<p>Created page with &quot;Work in progress&quot;</p> <p><b>New page</b></p><div>Work in progress</div>

imported>Will.Lawler