{"id":280,"date":"2025-10-16T16:40:37","date_gmt":"2025-10-16T08:40:37","guid":{"rendered":"https:\/\/www.ehresh.net\/?p=280"},"modified":"2025-10-16T16:40:37","modified_gmt":"2025-10-16T08:40:37","slug":"wiped-film-evaporation-or-thin-film-evaporation","status":"publish","type":"post","link":"https:\/\/www.ehresh.net\/?p=280","title":{"rendered":"Wiped film evaporation or thin film evaporation"},"content":{"rendered":"\n<p>Wiped film evaporator or thin film evaporator plants can be effectively used for multiple applications in&nbsp;<strong>wastewater treatment<\/strong>: to produce clean water for&nbsp;<strong>reuse or recycling<\/strong>, based on the&nbsp;<strong>minimum or zero liquid discharge<\/strong>&nbsp;(MLD, ZLD) approach; to&nbsp;<strong>concentrate wastewater<\/strong>&nbsp;prior to off-site disposal reducing its volumes and costs; to produce, if necessary, a&nbsp;<strong>dry solid waste<\/strong>.<\/p>\n\n\n\n<p>The following streams are separated using evaporation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A condensate, free of salts, metals, high boiling point organics, that in most cases can be reused or recycled<\/li>\n\n\n\n<li>A concentrate for off-site disposal or recovery<\/li>\n<\/ul>\n\n\n\n<p>Wiped film evaporators (WFE) or thin film evaporators (TFE) and wiped film dryers (WFD) are optimally suited to&nbsp;<strong>handle very high viscous and fouling streams<\/strong>: a very challenging or even impossible task for other types of heat exchangers. As a consequence, they are&nbsp;<strong>often used in the final stage of ZLD and MLD<\/strong>&nbsp;wastewater treatment plants.<\/p>\n\n\n\n<p><strong>Combining natural circulation or forced circulation evaporators<\/strong>, used in prior concentration stages, provides the&nbsp;<strong>best balance<\/strong>&nbsp;in terms of&nbsp;<strong>investment<\/strong>,&nbsp;<strong>operating costs and performances<\/strong>, especially when a<strong>&nbsp;solid waste<\/strong>&nbsp;<strong>is required<\/strong>.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wiped film evaporator or thin film evaporator plants can be effectively used for multiple applications in&nbsp;wastewater treatment: to produce clean water for&nbsp;reuse or recycling, based on the&nbsp;minimum or zero liquid discharge&nbsp;(MLD, ZLD) approach; to&nbsp;concentrate wastewater&nbsp;prior to off-site disposal reducing its volumes and costs; to produce, if necessary, a&nbsp;dry solid waste. The following streams are separated [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":281,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[73],"tags":[259,258,260,261],"class_list":["post-280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application","tag-tfe","tag-thin-film-evaporator","tag-wfe","tag-wiped-film-evaporatoor"],"_links":{"self":[{"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/posts\/280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=280"}],"version-history":[{"count":1,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/posts\/280\/revisions"}],"predecessor-version":[{"id":282,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/posts\/280\/revisions\/282"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=\/wp\/v2\/media\/281"}],"wp:attachment":[{"href":"https:\/\/www.ehresh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ehresh.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}