{"id":55322,"date":"2025-10-20T11:15:04","date_gmt":"2025-10-20T03:15:04","guid":{"rendered":"https:\/\/stark-water.com\/?p=55322"},"modified":"2025-10-20T11:15:07","modified_gmt":"2025-10-20T03:15:07","slug":"deionizing-water-system","status":"publish","type":"post","link":"https:\/\/stark-water.com\/nl\/blog\/deionizing-water-system\/","title":{"rendered":"Deioniserend watersysteem gids 2025: Werkingsprincipe, dimensionering, regeneratie en kosten"},"content":{"rendered":"<p>This engineering playbook explains a&nbsp;<strong>deionizing water system<\/strong>&nbsp;from end to end\u2014where it fits in industrial trains, how it works (resins &amp; chemistry), how to&nbsp;<strong>size vessels and service cycles<\/strong>, regeneration design, quality acceptance, OPEX drivers, commissioning SOPs, and a troubleshooting map. Use it to scope faster and cut startup risks.<\/p>\n\n\n\n<p><em>Audience:<\/em>&nbsp;process\/utility engineers, project managers, and buyers running RO \u2192 DI\/EDI polish for electronics, battery plants, optics, lab utilities, F&amp;B blending water, and general manufacturing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1) Where a deionizing water system fits in the process train<\/h2>\n\n\n\n<p>Typical lines place a&nbsp;<strong>deionizing water system<\/strong>&nbsp;after RO to polish residual ions before storage\/distribution. Common sequences:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RO \u2192 Two-bed DI (cation + anion) \u2192 Mixed bed polish \u2192 Storage &amp; loop<\/strong><\/li>\n\n\n\n<li><strong>RO \u2192 EDI \u2192 (Optional) Mixed bed cartridge polish \u2192 Storage &amp; loop<\/strong><\/li>\n\n\n\n<li>When hygiene matters, use\u00a0<a href=\"https:\/\/stark-water.com\/nl\/product-categorie\/producten-van-roestvrij-staal\/\">stainless-steel tanks, valves and housings<\/a>\u00a0with sanitary slopes, no dead legs, and validated rinsing.<\/li>\n<\/ul>\n\n\n\n<p>Related guides:&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/edi-vs-mixed-bed-ion-exchange\/\">EDI vs mixed bed ion exchange<\/a>&nbsp;-&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/inside-out-ultrafiltration-membrane\/\">UF pretreatment (particle &amp; bioload control)<\/a><\/p>\n\n\n\n<p>Well-designed <strong>deionizing water systems<\/strong> stabilize downstream loops and reduce polishing media consumption.<\/p>\n\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-1024x683.webp\" alt=\"deionizing water system2\" class=\"wp-image-55359\" title=\"\" srcset=\"https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-1024x683.webp 1024w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-300x200.webp 300w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-768x512.webp 768w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-18x12.webp 18w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2-600x400.webp 600w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system2.webp 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">deionizing water system2<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2) Working principle of a deionizing water system (resins &amp; chemistry)<\/h2>\n\n\n\n<p>DI relies on ion-exchange resins to replace dissolved ions with H<sup>+<\/sup>&nbsp;and OH<sup>\u2212<\/sup>, forming H<sub>2<\/sub>O. Implementations:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Two-bed DI:<\/strong>\u00a0cation resin (SAC, H<sup>+<\/sup>\u00a0form) then anion resin (SBA, OH<sup>\u2212<\/sup>\u00a0form). Robust, easy to regenerate onsite.<\/li>\n\n\n\n<li><strong>Mixed bed DI:<\/strong>\u00a0intimate mix of cation\/anion beads in one vessel, delivering the lowest conductivity; often used as final polish or in cartridges.<\/li>\n\n\n\n<li><strong>Service DI:<\/strong>\u00a0vendor swaps pre-regenerated tanks\u2014no onsite chemicals; higher cost per m<sup>3<\/sup>\u00a0but fast and compliant.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Resin types that matter<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>SAC (strong-acid cation):<\/strong>\u00a0tolerant, handles Ca\/Mg\/Na; regenerated by HCl or H<sub>2<\/sub>SO<sub>4<\/sub>.<\/li>\n\n\n\n<li><strong>SBA (strong-base anion): Type I vs Type II<\/strong>\u2014Type I excels at silica\/nitrate; Type II offers better efficiency at warm temps but weaker on silica.<\/li>\n\n\n\n<li><strong>WBA (weak-base anion):<\/strong>\u00a0removes mineral acids but not silica\/CO<sub>2<\/sub>; used as an efficiency stage upstream of SBA.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Silica &amp; CO<sub>2<\/sub>&nbsp;control<\/h3>\n\n\n\n<p>Silica and CO<sub>2<\/sub>&nbsp;decide your anion loading and final quality. Lower them by RO pH control, degassing, or interstage alkalinity conditioning. High CO<sub>2<\/sub>&nbsp;inflates conductivity yet \u201cpasses through\u201d RO\u2014plan for it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3) Feed requirements &amp; pretreatment before DI<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Oxidants:<\/strong>\u00a0remove free chlorine\/chloramine ahead of RO\/DI (GAC or SBS). Oxidants attack polyamide and some resins.<\/li>\n\n\n\n<li><strong>Particles &amp; bio:<\/strong>\u00a0multimedia\/U F + biocontrol; target SDI &lt; 3 to protect RO &amp; DI.<\/li>\n\n\n\n<li><strong>Organics:<\/strong>\u00a0GAC or UV-TOC as required by spec; organics foul anion resin and raise TOC in product.<\/li>\n\n\n\n<li><strong>CO<sub>2<\/sub>\u00a0&amp; degassing:<\/strong>\u00a0vacuum or membrane degas at interstage to cut anion load and stabilize conductivity.<\/li>\n<\/ul>\n\n\n\n<p>When blending RO feed or designing antiscalant upstream, use our&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/waterzuiveringscalculators\/lsi-calculator\/\">LSI calculator<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4) Sizing a deionizing water system\u2014method, formulas &amp; worked examples<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 Design steps (quick)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Collect\u00a0<strong>RO permeate<\/strong>\u00a0analysis: conductivity (\u00b5S\/cm), alkalinity\/CO<sub>2<\/sub>, silica, temperature, and daily volume profile.<\/li>\n\n\n\n<li>Convert ionic load to\u00a0<em>mg\/L as CaCO<sub>3<\/sub><\/em>\u00a0(order-of-magnitude: 2 \u00b5S\/cm \u2248 1 mg\/L as CaCO<sub>3<\/sub>\u00a0for low-TDS waters).<\/li>\n\n\n\n<li>Pick\u00a0<strong>service time<\/strong>\u00a0(e.g., 8\u201324 h) between regenerations\/swaps and apply a quality safety margin (breakthrough at 50\u201370% of spec).<\/li>\n\n\n\n<li>Size\u00a0<strong>resin volume<\/strong>\u00a0from capacity per cycle &amp; load; check hydraulic limits (Bv\/h) and \u0394P.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 Typical capacities (industrial ranges)<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Resin<\/th><th>Practical capacity\/cycle<\/th><th>Opmerkingen<\/th><\/tr><\/thead><tbody><tr><td>SAC (H<sup>+<\/sup>)<\/td><td>1.25\u20131.9 eq\/L (\u224820\u201330 kgr\/ft\u00b3)<\/td><td>Depends on acid type &amp; rinse; HCl more common.<\/td><\/tr><tr><td>SBA (OH<sup>\u2212<\/sup>)<\/td><td>0.95\u20131.6 eq\/L (\u224815\u201325 kgr\/ft\u00b3)<\/td><td>Silica\/CO<sub>2<\/sub>&nbsp;reduce effective capacity.<\/td><\/tr><tr><td>Gemengd bed<\/td><td>Polish to sub-\u00b5S\/cm<\/td><td>Size by run time &amp; target \u0394P; used near spec limits.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">4.3 Worked example A \u2014 2.0 m\u00b3\/h polish to &lt; 5 \u00b5S\/cm<\/h3>\n\n\n\n<p><em>Given:<\/em>&nbsp;RO permeate 20 \u00b5S\/cm (~10 mg\/L as CaCO<sub>3<\/sub>), 16 h\/day, target mixed bed polish.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Daily equivalents \u2248 (10 mg\/L \u00d7 2.0 \u00d7 16,000 L)\/50,000 mg\/eq \u2248\u00a0<strong>6.4 eq\/day<\/strong>.<\/li>\n\n\n\n<li>Two-bed DI: choose 2 \u00d7 50 L per vessel (duty\/standby). Using 1.5 eq\/L capacity \u2192 75 eq per vessel\u2014ample margin for weekly regen.<\/li>\n\n\n\n<li>Add 10 L mixed bed cartridge skid as final\u00a0<strong>deionizing water system<\/strong>\u00a0polish; trigger swap at 70% of spec.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.4 Hydraulics &amp; \u0394P checks<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bed velocity:<\/strong>\u00a05\u201340 Bv\/h (industrial DI); keep pressure drop &lt; 0.7\u20131.0 bar per vessel at design flow.<\/li>\n\n\n\n<li><strong>Rinse volumes:<\/strong>\u00a0allow 2\u20135 bed volumes for displacement &amp; rinse-to-spec after regeneration.<\/li>\n\n\n\n<li>For sanitary systems use 316L vessels, orbital welds, and low-shedding elastomers; see our\u00a0<a href=\"https:\/\/stark-water.com\/nl\/product-categorie\/producten-van-roestvrij-staal\/\">stainless-steel portfolio<\/a>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5) Regeneration &amp; waste handling (onsite DI)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 Chemistry selections<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cation (SAC):<\/strong>\u00a0HCl 4\u20138% or H<sub>2<\/sub>SO<sub>4<\/sub>\u00a02\u20134% (watch CaSO<sub>4<\/sub>\u00a0scaling at higher strengths).<\/li>\n\n\n\n<li><strong>Anion (SBA):<\/strong>\u00a0NaOH 4\u20136% for Type I\/II; warm caustic improves organics removal.<\/li>\n\n\n\n<li><strong>Flow modes:<\/strong>\u00a0co-current (simpler) vs counter-current (higher efficiency, lower leakage).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 Neutralization &amp; safety<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Segregate acid\/caustic drains; neutralize to pH 6\u20139 with adequate residence and monitoring.<\/li>\n\n\n\n<li>Full PPE, eyewash\/ shower, interlocks for chemical transfer; follow OEM SOPs and local permits.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-1024x683.webp\" alt=\"deionizing water system3\" class=\"wp-image-55357\" title=\"\" srcset=\"https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-1024x683.webp 1024w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-300x200.webp 300w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-768x512.webp 768w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-18x12.webp 18w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3-600x400.webp 600w, https:\/\/stark-water.com\/wp-content\/uploads\/2025\/10\/deionizing-water-system3.webp 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">deionizing water system3<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">6) Configuration choices\u2014two-bed DI, mixed bed, service DI, and EDI hybrid<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Configuration<\/th><th>Kwaliteit<\/th><th>Capex\/Opex<\/th><th>When to pick<\/th><\/tr><\/thead><tbody><tr><td>Two-bed DI<\/td><td>1\u201310 \u00b5S\/cm<\/td><td>Low OPEX at volume; capex for regen<\/td><td>Steady plants with utilities and staff<\/td><\/tr><tr><td>Mixed bed DI<\/td><td>&lt; 1 \u00b5S\/cm<\/td><td>Medium; frequent polish media swaps<\/td><td>Final polish or variable tools<\/td><\/tr><tr><td>Service DI<\/td><td>Vendor-guaranteed<\/td><td>High per m\u00b3; zero chemicals onsite<\/td><td>GMP\/labs\/startups &amp; tight HSE<\/td><\/tr><tr><td>EDI hybrid<\/td><td>Sub-\u00b5S\/cm continuous<\/td><td>Stable OPEX; no bulk chemicals<\/td><td>Stable RO, chemical restrictions<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Deep dive:&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/edi-vs-mixed-bed-ion-exchange\/\">EDI vs mixed bed\u2014selection guide<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7) Instrumentation, control &amp; acceptance criteria<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inline meters:<\/strong>\u00a0feed\/product conductivity, temperature, \u0394P; optional TOC &amp; silica monitors for high-purity loops.<\/li>\n\n\n\n<li><strong>Exhaustion control:<\/strong>\u00a0conductivity breakpoints with delay\/confirm timers; auto divert until\u00a0<em>rinse-to-spec<\/em>.<\/li>\n\n\n\n<li><strong>Trending:<\/strong>\u00a0day-to-day conductivity @ set load, \u0394P, resin run-hours; investigate step changes immediately.<\/li>\n\n\n\n<li><strong>Typical acceptance<\/strong>\u00a0(indicative\u2014use contract specs): product \u2264 target \u00b5S\/cm at 25\u2009\u00b0C; silica within limit; TOC where applicable.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">8) OPEX\u2014what drives the cost of a deionizing water system<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chemicals:<\/strong>\u00a0acid\/caustic per regeneration and rinse loss.<\/li>\n\n\n\n<li><strong>Media:<\/strong>\u00a0resin life (oxidants\/organics, iron fouling) &amp; mixed-bed cartridge frequency.<\/li>\n\n\n\n<li><strong>Nutsvoorzieningen:<\/strong>\u00a0pump kWh\/m\u00b3, neutralization, wastewater fees.<\/li>\n\n\n\n<li><strong>Labor &amp; service:<\/strong>\u00a0in-house operators vs service-DI logistics.<\/li>\n<\/ul>\n\n\n\n<p>For RO front-end cost modeling, see our&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/ro-opex-calculator\/\">RO OPEX calculator<\/a>.<\/p>\n\n\n\n<p>Right pretreatment upstream of a <strong>deionizing water system<\/strong> is the single biggest lever to cut OPEX.<\/p>\n\n\n\n\n<h2 class=\"wp-block-heading\">9) Commissioning SOP\u2014for DI skids and loops<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Verify materials &amp; cleanliness (316L, elastomers, seals); flush to clear particles; check leak-tightness.<\/li>\n\n\n\n<li>Load\/stratify resins correctly (for mixed bed, follow OEM separation\/air scour procedures).<\/li>\n\n\n\n<li>Cold rinse, then chemical regeneration (onsite DI), then\u00a0<strong>rinse-to-spec<\/strong>\u00a0with inline conductivity sampling.<\/li>\n\n\n\n<li>Baseline recording: feed\/product conductivity vs flow\/temp; document release criteria and sampling plan.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">10) Troubleshooting map\u2014fast triage<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Symptoom<\/th><th>Waarschijnlijke hoofdoorzaken<\/th><th>Eerste controles<\/th><\/tr><\/thead><tbody><tr><td>Product conductivity rising<\/td><td>Resin exhaustion, CO<sub>2<\/sub>&nbsp;spike, silica breakthrough, flow beyond design<\/td><td>Trend vs temperature; check degas\/alkalinity; verify regeneration and divert timings<\/td><\/tr><tr><td>\u0394P hoog<\/td><td>Fines\/particulates, channeling collapse, biofouling<\/td><td>Sample bed\/fines, review pretreatment &amp; filter changes, backwash\/air scours (where allowed)<\/td><\/tr><tr><td>TOC out of spec<\/td><td>Organics leakage from anion resin or upstream GAC saturation<\/td><td>Warm caustic clean, GAC service, UV-TOC check, replace polish cartridge<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">11) FAQ\u2014deionizing water system<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">How low can conductivity go?<\/h3>\n\n\n\n<p>Two-bed DI typically reaches 1\u201310 \u00b5S\/cm; a mixed bed or EDI polish can reach sub-\u00b5S\/cm if RO feed is conditioned (low CO<sub>2<\/sub>, stable temperature).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Onsite DI vs service DI?<\/h3>\n\n\n\n<p>Onsite DI wins at large steady volumes; service DI eliminates chemicals and speeds compliance at a higher per-m\u00b3 cost.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How do I handle silica?<\/h3>\n\n\n\n<p>Prefer SBA Type I, maintain temperature control, consider degassing\/pH conditioning interstage, and add a mixed-bed polish when specs are tight.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Next steps<\/h2>\n\n\n\n<p>Share your RO permeate analysis and demand curve \u2014 we\u2019ll size your <strong>deionizing water system<\/strong> (resin volumes, vessel diameters, regeneration strategy) and propose a hygienic stainless-steel tank &amp; distribution package.<\/p>\n\n\n\n<p><a href=\"https:\/\/stark-water.com\/nl\/request-a-quote\/\">Een offerte aanvragen<\/a>&nbsp;-&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/product-categorie\/producten-van-roestvrij-staal\/\">Stainless-steel tanks &amp; housings<\/a>&nbsp;-&nbsp;<a href=\"https:\/\/stark-water.com\/nl\/edi-vs-mixed-bed-ion-exchange\/\">EDI vs mixed bed<\/a><\/p>\n\n\n\n<p><strong>Author &amp; Review:<\/strong>&nbsp;Stark Water process team (10+ years in RO\/DI\/EDI projects).&nbsp;<em>Last reviewed: 2025-10-20.<\/em><\/p>\n\n\n\n<p><strong>Verder lezen:<\/strong>&nbsp;<a href=\"https:\/\/www.astm.org\/d1193-06r18.html\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D1193<\/a>&nbsp;-&nbsp;<a href=\"https:\/\/www.wqa.org\/learn-about-water\/\" target=\"_blank\" rel=\"noreferrer noopener\">WQA resources<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>This engineering playbook explains a&nbsp;deionizing water system&nbsp;from end to end\u2014where it fits in industrial trains, how it works (resins &amp; [&hellip;]<\/p>","protected":false},"author":1,"featured_media":55339,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","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":""}},"_joinchat":[],"footnotes":""},"categories":[208],"tags":[],"class_list":["post-55322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-water-treatment-guides"],"acf":[],"_links":{"self":[{"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/posts\/55322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/comments?post=55322"}],"version-history":[{"count":4,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/posts\/55322\/revisions"}],"predecessor-version":[{"id":55360,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/posts\/55322\/revisions\/55360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/media\/55339"}],"wp:attachment":[{"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/media?parent=55322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/categories?post=55322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stark-water.com\/nl\/wp-json\/wp\/v2\/tags?post=55322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}