{"id":346,"date":"2026-07-08T16:55:33","date_gmt":"2026-07-08T08:55:33","guid":{"rendered":"https:\/\/www.rubri.cn\/zld-front-end-reduction\/"},"modified":"2026-07-08T16:55:33","modified_gmt":"2026-07-08T08:55:33","slug":"zld-front-end-reduction","status":"publish","type":"post","link":"https:\/\/www.rubri.cn\/en\/zld-front-end-reduction\/","title":{"rendered":"Why is front-end reduction important for zero liquid discharge (ZLD)?"},"content":{"rendered":"<p>Reducing water volume and controlling salt composition before evaporation and crystallization helps reduce the scale and operating pressure of downstream equipment.<\/p>\n<h2>Reduction Value<\/h2>\n<ul>\n<li>Reduce the water volume entering the evaporation system.<\/li>\n<li>Reduce the impact of water quality fluctuations on the crystallization stage.<\/li>\n<li>Create conditions for salt separation, reuse, and solid product control.<\/li>\n<\/ul>\n<h2>Common Combinations<\/h2>\n<p>Pretreatment, membrane separation, electromembrane concentration, evaporation, and crystallization should be combined according to the specific water quality. A fixed process should not be applied to all high-salinity wastewater.<\/p>\n<h2>Key Boundaries<\/h2>\n<ul>\n<li>Control of hardness, silica, and organics.<\/li>\n<li>Target concentration factor and recovery rate.<\/li>\n<li>Final destination of concentrate and crystallized salts.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Reducing water volume and controlling salt composition before evaporation and crystallization helps reduce the scale and operating pressure of downstream equipment.<\/p>","protected":false},"author":0,"featured_media":121,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","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":""}},"footnotes":""},"categories":[81],"tags":[],"class_list":["post-346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-81"],"_links":{"self":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/posts\/346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/comments?post=346"}],"version-history":[{"count":0,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/posts\/346\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media\/121"}],"wp:attachment":[{"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/media?parent=346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/categories?post=346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rubri.cn\/en\/wp-json\/wp\/v2\/tags?post=346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}