{"id":1466,"date":"2022-04-01T09:23:00","date_gmt":"2022-04-01T09:23:00","guid":{"rendered":"https:\/\/www.nanoh2owater.com\/es\/?post_type=content-hub&#038;p=1466"},"modified":"2026-06-14T23:58:50","modified_gmt":"2026-06-14T23:58:50","slug":"excellent-membrane-performance-treating-steelmaking-wastewater-in-taiwan","status":"publish","type":"content-hub","link":"https:\/\/www.nanoh2owater.com\/es\/content-hub\/excellent-membrane-performance-treating-steelmaking-wastewater-in-taiwan\/","title":{"rendered":"Excellent Membrane Performance Treating Steelmaking Wastewater in Taiwan"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"512\" src=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/AdobeStock_120923675.jpeg\" alt=\"\" class=\"wp-image-1468\" srcset=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/AdobeStock_120923675.jpeg 800w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/AdobeStock_120923675-300x192.jpeg 300w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/AdobeStock_120923675-768x492.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Background<\/h2>\n\n\n\n<p>The largest steel maker in Taiwan treats its wastewater to reusable standards using reverse osmosis to meet sustainable development goals. The wastewater reclamation facility has a capacity of 14,400 m\u00b3\/day (3.8 MGD) and returns the treated water to its industrial process. A minimum qualification trial of up to six (6) months is required to become an approved membrane supplier for the water recycling process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qualification<\/h2>\n\n\n\n<p>LG BW 400 R G2, LG Chem\u2019s highest rejection brackish water RO membrane with a new proprietary low differential pressure feed spacer, was piloted in a full train along with a leading competitor\u2019s low-fouling membrane element also equipped with a low dP feed spacer. Both models were tested and evaluated according to the conditions and test criteria listed below:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Operating Conditions:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Flux: 15 lmh (8.8 gfd)<\/li>\n\n\n\n<li>Recovery rate: 60\u201370%<\/li>\n\n\n\n<li>Temperature range: 30\u201340 \u00b0C (86\u2013104 \u00b0F)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Test Criteria:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Performance recovery after clean-in-place (CIP)<\/li>\n\n\n\n<li>Energy consumption<\/li>\n\n\n\n<li>Stabilization of membrane performance<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Low energy consumption and stable performance<\/h2>\n\n\n\n<p>As shown in Figure 1, LG BW 400 R G2 produced a higher specific flux than the competitor model, indicating a lower energy demand for the same amount of water production. The data confirmed more stable salt rejection for LG NanoH\u2082O\u2122 RO membranes (Figure 2), a critical factor for wastewater applications due to the high fouling tendency of the feed water.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"600\" src=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-1-1024x600.jpg\" alt=\"\" class=\"wp-image-1470\" srcset=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-1-1024x600.jpg 1024w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-1-300x176.jpg 300w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-1-768x450.jpg 768w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-1.jpg 1421w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"644\" src=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-1024x644.jpg\" alt=\"\" class=\"wp-image-1471\" srcset=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-1024x644.jpg 1024w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-300x189.jpg 300w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-768x483.jpg 768w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-800x504.jpg 800w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2-852x536.jpg 852w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-2.jpg 1397w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"644\" src=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-1024x644.jpg\" alt=\"\" class=\"wp-image-1472\" srcset=\"https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-1024x644.jpg 1024w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-300x189.jpg 300w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-768x483.jpg 768w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-800x504.jpg 800w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3-852x536.jpg 852w, https:\/\/www.nanoh2owater.com\/es\/wp-content\/uploads\/sites\/3\/2022\/01\/Steel-manufacturer_Figure-3.jpg 1397w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Improved membrane durability and resiliency<\/h2>\n\n\n\n<p>The differential pressure of LG Chem\u2019s product was consistently lower than the competitor\u2019s product, even during a spike in the feedwater conductivity between October and December. Furthermore, the CIP frequency of NanoH\u2082O\u2122 membranes was remarkably less than half of that required for the competitor\u2019s product (Table 1). These are important indicators of a better fouling resistance and cleanability of LG Chem\u2019s TFN membrane combined with the low dP feed spacer. <\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th colspan=\"3\"><strong>Table 1: CIP History<\/strong><\/th><\/tr><\/thead><tbody><tr><td>CIP number<\/td><td class=\"has-text-align-center\" data-align=\"center\">Competitor<\/td><td class=\"has-text-align-center\" data-align=\"center\">LG BW 400 R G2<\/td><\/tr><tr><td>1st<\/td><td class=\"has-text-align-center\" data-align=\"center\">July 17<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sep 8<\/td><\/tr><tr><td>2nd<\/td><td class=\"has-text-align-center\" data-align=\"center\">Sep 9<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nov 10<\/td><\/tr><tr><td>3rd<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nov 6<\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td>4th<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nov 10<\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td>5th<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nov 20<\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Outcome<\/h2>\n\n\n\n<p>After the trial period, the end-user approved LG NanoH\u2082O\u2122 RO membranes that successfully demonstrated the following product advantages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher specific flux: lower energy use without losing permeate quality;<\/li>\n\n\n\n<li>Excellent membrane durability: better performance recovery after cleanings;<\/li>\n\n\n\n<li>Robust membrane chemistry: longer and more consistent production of high permeate quality.<\/li>\n<\/ul>\n","protected":false},"featured_media":1474,"template":"","content-hub-categories":[10,144],"content-hub-types":[19],"content-hub-tags":[126,103,104,106],"class_list":["post-1466","content-hub","type-content-hub","status-publish","has-post-thumbnail","hentry","content-hub-tags-canary-islands","content-hub-tags-desalination","content-hub-tags-ro-membrane","content-hub-tags-swro"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub\/1466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub"}],"about":[{"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/types\/content-hub"}],"version-history":[{"count":3,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub\/1466\/revisions"}],"predecessor-version":[{"id":2004,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub\/1466\/revisions\/2004"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/media\/1474"}],"wp:attachment":[{"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/media?parent=1466"}],"wp:term":[{"taxonomy":"content-hub-categories","embeddable":true,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub-categories?post=1466"},{"taxonomy":"content-hub-types","embeddable":true,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub-types?post=1466"},{"taxonomy":"content-hub-tags","embeddable":true,"href":"https:\/\/www.nanoh2owater.com\/es\/wp-json\/wp\/v2\/content-hub-tags?post=1466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}