{"id":20318,"date":"2026-09-30T10:32:39","date_gmt":"2026-09-30T10:32:39","guid":{"rendered":"https:\/\/jhuesa.com\/?p=20318"},"modified":"2026-10-05T10:32:54","modified_gmt":"2026-10-05T10:32:54","slug":"seawater-treatment-microalgae-cultivation-ultrafiltration","status":"publish","type":"post","link":"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration","title":{"rendered":"Water Treatment for Microalgae Cultivation Using Ultrafiltration"},"content":{"rendered":"<p>Microalgae production has experienced significant growth in recent years due to its wide range of industrial applications. Owing to their versatility and functional properties, microalgae are used across diverse sectors including cosmetics, aquaculture, food production, animal nutrition and nutraceuticals, making them a <strong>highly valuable raw material for numerous industries<\/strong>.<\/p>\n<p>However, the industrial production of microalgae requires strict control of cultivation conditions to ensure both system productivity and the quality of the resulting biomass. Among the various factors involved in the process, <strong>water quality is one of the most critical parameters<\/strong>.<\/p>\n<p>To optimise the seawater used in its production processes, <strong>Necton SA<\/strong>, a Portuguese company specialising in microalgae cultivation commissioned <strong><span style=\"color: #1e73be;\">J. Huesa Water Technology<\/span><\/strong> to design and supply a <strong>treatment plant based on ultrafiltration technology with a nominal capacity of 12.5 m\u00b3\/h<\/strong>.<\/p>\n<p>The project was delivered on a <strong>turnkey basis<\/strong>, encompassing all phases from preliminary studies, engineering and design through to bespoke manufacturing, installation and commissioning of the plant.<\/p>\n<p>As part of this execution strategy, the plant was <strong>manufactured and factory-tesfted at<\/strong> <span style=\"color: #1e73be;\"><a style=\"color: #1e73be;\" href=\"http:\/\/jhuesa.com\/en\"><strong>J. Huesa&#8217;s<\/strong><\/a><\/span> <strong>facilities<\/strong> before being supplied as a fully assembled skid-mounted unit. This approach <strong>reduces on-site work, shortens installation and commissioning times, and minimises the risks associated with field assembly<\/strong>.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Resumen de Contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration\/#Treatment_Objective\" >Treatment Objective<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration\/#Preatreatment\" >Preatreatment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration\/#Ultrafiltration_system\" >Ultrafiltration system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration\/#Membrane_Cleaning_System\" >Membrane Cleaning System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jhuesa.com\/en\/seawater-treatment-microalgae-cultivation-ultrafiltration\/#Automation_and_Process_Control\" >Automation and Process Control<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Treatment_Objective\"><\/span>Treatment Objective<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The quality of the feed water has a direct impact on both the <strong>stability of microalgae cultures and the reliable operation of production facilities<\/strong>. Variations in the levels of suspended solids, particulate matter and other impurities may affect both crop development and the overall performance of the process. In this context, ultrafiltration provides an effective solution for ensuring a stable and consistent water quality, regardless of fluctuations in the feed water.<\/p>\n<p>Ultrafiltration technology effectively addresses these fluctuations through a <strong>physical barrier formed by hollow-fibre membranes with nanometre-scale pores<\/strong>, capable of retaining particles and colloids regardless of variations in feed water quality. As a result, the<strong> treated water consistently achieves very low and stable turbidity and suspended solids levels<\/strong>, providing more reliable and predictable process conditions.<\/p>\n<p>Following a detailed assessment of the client&#8217;s technical requirements and overall project objectives, <strong><span style=\"color: #1e73be;\">J.Huesa&#8217;s<\/span><\/strong> engineering team developed a <strong>bespoke<\/strong> <strong>solution specifically designed to condition seawater through advanced physical separation processes<\/strong>.<\/p>\n<p>The selected treatment train combines a <strong>pre-filtration stage based on disc filtration with a primary ultrafiltration membrane stage<\/strong>, enabling the production of water of suitable quality for use within the cultivation systems.<\/p>\n<p>The main design parameters considered for the installation are summarised in the table below:<\/p>\n<style>\n.tabla-parametros {<br \/>    width: 100%;<br \/>    border-collapse: collapse;<br \/>    font-family: Arial, sans-serif;<br \/>    font-size: 16px;<br \/>    color: #333;<br \/>}<\/p>\n<p>.tabla-parametros th {<br \/>    background-color: #f2f2f2;<br \/>    font-weight: 600;<br \/>    text-align: left;<br \/>    padding: 14px 16px;<br \/>    border: 1px solid #ddd;<br \/>}<\/p>\n<p>.tabla-parametros td {<br \/>    padding: 14px 16px;<br \/>    border: 1px solid #ddd;<br \/>    vertical-align: middle;<br \/>}<\/p>\n<p>.tabla-parametros tr:nth-child(even) {<br \/>    background-color: #fafafa;<br \/>}<\/p>\n<p>.tabla-parametros tr:hover {<br \/>    background-color: #f5f5f5;<br \/>}<\/p>\n<p>@media (max-width: 600px) {<br \/>    .tabla-parametros {<br \/>        font-size: 14px;<br \/>    }<\/p>\n<p>    .tabla-parametros th,<br \/>    .tabla-parametros td {<br \/>        padding: 10px 12px;<br \/>    }<br \/>}<br \/><\/style>\n<table class=\"tabla-parametros\">\n<thead>\n<tr>\n<th style=\"text-align: center;\">Parameter<\/th>\n<th style=\"text-align: center;\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Feed Flow rate<\/td>\n<td>14,10 m\u00b3\/h<\/td>\n<\/tr>\n<tr>\n<td>Ultrafiltered water Flow rate<\/td>\n<td>12,50 m\u00b3\/h<\/td>\n<\/tr>\n<tr>\n<td>Plant recovery rate<\/td>\n<td>88,70 %<\/td>\n<\/tr>\n<tr>\n<td>Operating hours<\/td>\n<td>20 h\/day<\/td>\n<\/tr>\n<tr>\n<td>BW-CEB-CIP tank<\/td>\n<td>4 m\u00b3<\/td>\n<\/tr>\n<tr>\n<td>Ultrafiltered water tank<\/td>\n<td>5 m\u00b3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>The installation has been designed <strong>to maximise water resource utilisation<\/strong>, achieving an <strong>overall recovery rate of 88.7%<\/strong>. This means that, out of the 14.10 m\u00b3\/h of seawater intake, <strong>12.50 m\u00b3\/h is converted into ultrafiltered water suitable for the client&#8217;s microalgae cultivation systems<\/strong>, with only approximately 1.6 m\u00b3\/h allocated to membrane cleaning operations.<\/p>\n<p>This high recovery rate contributes both to <strong>reducing seawater abstraction and minimising the volume of effluent generated<\/strong>, thereby improving the overall sustainability of the installation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Preatreatment\"><\/span>Preatreatment<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The first protective barrier within the system consists of a self-cleaning disc filter with a filtration grade of 150 \u03bcm.<\/p>\n<p>This stage removes sand, coarse solids and other large particles present in the feed water, reducing the solids load reaching the ultrafiltration system and improving membrane operating conditions.<\/p>\n<p>The filter&#8217;s automatic cleaning function maintains filtration performance without the need for frequent process interruptions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ultrafiltration_system\"><\/span>Ultrafiltration system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The main treatment stage comprises <strong>three ultrafiltration modules<\/strong> designed to remove fine solids and residual suspended matter, enabling the reduction of suspended solids, fine particles and turbidity present in the feed water.<\/p>\n<p><a href=\"https:\/\/jhuesa.com\/en\/technologies\/ultrafiltration\">Ultrafiltration<\/a> is a membrane separation technology <strong>widely used when a significant reduction in the solids content of surface water or seawater streams is required<\/strong>.<\/p>\n<p>In this project, the installation has been designed to provide a <strong>treatment capacity of 12.5 m\u00b3\/h<\/strong>, producing water with characteristics suitable for use in the client&#8217;s cultivation systems.<\/p>\n<p>The system incorporates a <strong>5 m\u00b3 ultrafiltered water storage tank<\/strong>, which enables treated water storage and supports the various automatic operating sequences of the installation. The tank is equipped with a recirculation system to ensure the proper dosing of chemical products, allowing controlled reagent addition for treated water conditioning.<\/p>\n<div id=\"attachment_20306\" style=\"width: 1034px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-20306\" class=\"wp-image-20306 size-large\" src=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF-1024x683.jpg\" alt=\"Seawater Treatment for Microalgae Cultivation\" width=\"1024\" height=\"683\" srcset=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF-1024x683.jpg 1024w, https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF-300x200.jpg 300w, https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF-768x512.jpg 768w, https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF-900x600.jpg 900w, https:\/\/jhuesa.com\/wp-content\/uploads\/2026\/09\/Frontal-UF.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-20306\" class=\"wp-caption-text\">Ultrafiltration skid installed at the client&#8217;s facility<\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Membrane_Cleaning_System\"><\/span>Membrane Cleaning System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To maintain the operating performance of the ultrafiltration system, the plant incorporates <strong>several cleaning procedures integrated into the design<\/strong>.<\/p>\n<p>These include:<\/p>\n<p>\u2022 Backwash cleaning cycles.<br \/>\n\u2022 Chemically Enhanced Backwash (CEB) cleaning.<br \/>\n\u2022 Clean-In-Place (CIP) chemical cleaning.<br \/>\n\u2022 An Air Flush system providing pneumatic assistance during specific cleaning sequences.<\/p>\n<p>The installation also includes <strong>a dedicated BW-CEB-CIP tank<\/strong>, associated pumping systems and chemical dosing equipment used for membrane cleaning operations.<\/p>\n<p>These procedures help<strong> control membrane fouling and maintain the design performance parameters throughout plant operation<\/strong>.<\/p>\n<p>In addition to ensuring reliable system performance, the combination of scheduled hydraulic and chemical cleaning cycles helps <strong>maintain stable transmembrane pressure and filtration efficiency over time<\/strong>. This contributes to <strong>extending membrane service life<\/strong>, <strong>reducing the frequency of manual interventions and optimising operating costs associated with the treatment process<\/strong>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Automation_and_Process_Control\"><\/span>Automation and Process Control<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The installation has been equipped with a PLC-based control system <strong>capable of autonomously managing the various treatment and cleaning stages<\/strong>, significantly reducing the need for operator intervention.<\/p>\n<p>Through a <strong>7-inch touchscreen interface<\/strong>, users can monitor plant status, start and stop equipment, modify operating parameters, review alarm history and performance trends, and easily manage the different process sequences.<\/p>\n<p>In addition, the installation can be provided with <strong>remote access capabilities for diagnostics and technical support<\/strong>, reducing travel requirements and enabling faster resolution of operational issues.<\/p>\n<p>Thanks to this high level of automation, the client benefits from a<strong> reliable and efficient solution designed for continuous operation<\/strong>, meeting the demands of a biotechnological process where operational stability is a critical factor.<\/p>\n<p>This project demonstrates<strong><span style=\"color: #1e73be;\"> J. Huesa Water Technology&#8217;s<\/span> expertise in the design and implementation of water treatment systems tailored to the specific requirements of each industrial process<\/strong>.<\/p>\n<p>The turnkey execution of the project, from conceptual engineering through to final commissioning, has enabled the delivery of a<strong> plant specifically adapted to the operational requirements of industrial microalgae cultivation<\/strong>, integrating filtration, ultrafiltration, automation and chemical cleaning technologies into a bespoke solution.<\/p>\n<p>The <strong>turnkey scope<\/strong> also included operator training and commissioning support, ensuring the proper operation of the installation from day one. Following handover, the client continues to benefit from<a href=\"https:\/\/jhuesa.com\/en\/activity\/after-sales\"><strong><span style=\"color: #1e73be;\"> J.Huesa&#8217;s<\/span> after-sales service<\/strong><\/a>, including preventive and corrective maintenance, the supply of consumables and chemicals, and specialised technical support services.<\/p>\n<p>As a result of this solution, the client now benefits from a <strong>reliable supply of high-quality water for its cultivation processes, ensuring operational continuity and the overall reliability of the production process<\/strong>.<\/p>\n<div id=\"attachment_19293\" style=\"width: 1034px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-19293\" class=\"wp-image-19293 size-large\" src=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial-1024x576.jpg\" alt=\"Seawater Treatment for Microalgae Cultivation\" width=\"1024\" height=\"576\" srcset=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial-1024x576.jpg 1024w, https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial-300x169.jpg 300w, https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial-768x432.jpg 768w, https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial-1536x864.jpg 1536w, https:\/\/jhuesa.com\/wp-content\/uploads\/2025\/11\/servicio-quimico-al-agua-industrial.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-19293\" class=\"wp-caption-text\">Process quality control<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Microalgae production has experienced significant growth in recent years due to its wide range of industrial applications. Owing to their versatility and functional properties, microalgae are used across diverse sectors&#8230;<\/p>\n","protected":false},"author":5,"featured_media":20303,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,631],"tags":[659,653,118,379],"class_list":["post-20318","post","type-post","status-publish","format-standard","has-post-thumbnail","category-newss","category-ultrafiltracion-en","tag-microalgae","tag-microalgas-en","tag-ultrafiltration","tag-water-treatment-en-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Seawater Treatment for Microalgae Cultivation | J.Huesa<\/title>\n<meta name=\"description\" content=\"Seawater treatment for microalgae cultivation using ultrafiltration technology. Turnkey 12.5 m\u00b3\/h water treatment plant designed by J. 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