{"id":291,"date":"2026-07-08T15:36:48","date_gmt":"2026-07-08T07:36:48","guid":{"rendered":"https:\/\/www.rubri.cn\/products\/v2-product-2-1\/"},"modified":"2026-10-27T07:18:13","modified_gmt":"2026-10-26T23:18:13","slug":"electrodialysis-membrane-ed","status":"publish","type":"indie_product","link":"https:\/\/www.rubri.cn\/en\/products\/product-components\/electrodialysis-membrane-ed\/","title":{"rendered":"ED membrane"},"content":{"rendered":"<p>Electrodialysis (ED) membranes are the core separation material of electrodialysis systems. Under a direct current electric field, the selective permeability of ion-exchange membranes causes cations and anions to migrate directionally, achieving desalination, concentration, or salt separation of the feed solution; they are a fundamental component of electromembrane processes.<\/p>\n<h2>Structure and Types<\/h2>\n<ul>\n<li>Cation-exchange membrane: fixed groups are negatively charged, allowing cations to pass while blocking anions.<\/li>\n<li>Anion-exchange membrane: fixed groups are positively charged, allowing anions to pass while blocking cations.<\/li>\n<li>By application, they are divided into general electrodialysis membranes, monovalent-selective membranes, proton-blocking anion-exchange membranes, bipolar membranes, and other specialized types.<\/li>\n<\/ul>\n<h2>Product Features<\/h2>\n<ul>\n<li>High selective permeability allows effective desalination and concentration in relatively low concentration ranges.<\/li>\n<li>Low membrane surface resistance helps reduce the electrical energy consumption of the electrodialysis process.<\/li>\n<li>Good chemical stability allows use in operating conditions involving acids, alkalis, and certain oxidizing media.<\/li>\n<li>Mechanical strength meets the assembly requirements for repeated assembly and compression of the membrane stack.<\/li>\n<\/ul>\n<h2>Application Industries<\/h2>\n<ul>\n<li>Brackish water desalination, industrial wastewater desalination, and material desalination and purification.<\/li>\n<li>Concentration and volume reduction of high-salinity wastewater and front-end treatment for zero liquid discharge (ZLD).<\/li>\n<li>Separation of organic matter from inorganic salts, and resource recovery of acids, alkalis, and salts.<\/li>\n<li>Desalination and purification of food, pharmaceutical, and chemical materials.<\/li>\n<\/ul>\n<h2>Specifications and Models<\/h2>\n<div class=\"iw-table-wrap\">\n<table class=\"iw-table\">\n<tr>\n<th>Parameter<\/th>\n<th>Unit<\/th>\n<th>Typical value<\/th>\n<\/tr>\n<tr>\n<td>Membrane Type<\/td>\n<td>\u2014<\/td>\n<td>Cation-exchange membrane \/ anion-exchange membrane<\/td>\n<\/tr>\n<tr>\n<td>Area Resistance<\/td>\n<td>\u03a9\u00b7cm\u00b2<\/td>\n<td>1\u201310 (typical)<\/td>\n<\/tr>\n<tr>\n<td>Permselectivity<\/td>\n<td>%<\/td>\n<td>\u2265 90 (typical)<\/td>\n<\/tr>\n<tr>\n<td>Water Content<\/td>\n<td>%<\/td>\n<td>20\u201345 (typical)<\/td>\n<\/tr>\n<tr>\n<td>Exchange Capacity<\/td>\n<td>mmol\/g<\/td>\n<td>1.5\u20132.5 (typical)<\/td>\n<\/tr>\n<tr>\n<td>Thickness<\/td>\n<td>mm<\/td>\n<td>0.15\u20130.40 (typical)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<p>The data in the table are common ranges for similar equipment and are for selection reference only; specific specifications, models, materials, connections, and control methods must be confirmed during the selection stage based on water quality, treatment scale, and site conditions.<\/p>","protected":false},"excerpt":{"rendered":"<p>Core ion-selective membrane for electrodialysis desalination, concentration, and ionic separation under a direct-current field.<\/p>","protected":false},"featured_media":646,"parent":304,"menu_order":10,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"indie_product_cat":[],"class_list":["post-291","indie_product","type-indie_product","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/indie_product\/291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/indie_product"}],"about":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/types\/indie_product"}],"up":[{"embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/indie_product\/304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media\/646"}],"wp:attachment":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media?parent=291"}],"wp:term":[{"taxonomy":"indie_product_cat","embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/indie_product_cat?post=291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}