{"id":4812,"date":"2023-05-05T10:38:21","date_gmt":"2023-05-05T08:38:21","guid":{"rendered":"https:\/\/bioretur.no\/avvanning-av-fiskeslam\/"},"modified":"2025-03-31T15:31:43","modified_gmt":"2025-03-31T13:31:43","slug":"dewatering-of-fishsludge","status":"publish","type":"page","link":"https:\/\/bioretur.no\/en\/dewatering-of-fishsludge\/","title":{"rendered":"Dewatering of fishsludge"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-38wy0yx-24525b3fc048949e569bc76b11157159 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_one_full  avia-builder-el-first  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-4812'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-bc53x5-0d9a618eb69bc9bfda37209a8027a1ea\">\n.flex_column.av-bc53x5-0d9a618eb69bc9bfda37209a8027a1ea{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-bc53x5-0d9a618eb69bc9bfda37209a8027a1ea av_one_full  avia-builder-el-1  el_before_av_two_fifth  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e\">\n#top .av-special-heading.av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e{\npadding-bottom:15px;\ncolor:#005e51;\n}\nbody .av-special-heading.av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e .special-heading-inner-border{\nborder-color:#005e51;\n}\n.av-special-heading.av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-kgw3658z-8a48afcbd6d8f4cf9f352078b4aec36e av-special-heading-h1 custom-color-heading blockquote modern-quote  avia-builder-el-2  avia-builder-el-no-sibling '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >Equipment for dewatering fish sludge<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div><div  class='flex_column av-2nd3es-ff6bc851d6ea9be6430964c36f1c5b99 av_two_fifth  avia-builder-el-3  el_after_av_one_full  el_before_av_three_fifth  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-an8495-8b54352f04ca1a049c2c550ec9f55cf1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>A Bioretur dewatering system is practical for small aquaculture facilities and in cases where there is a short transportation distance for utilizing the wet fish sludge. Mechanical dewatering typically takes the material from 0.1 &#8211; 20% dry matter in a stepwise process. The system consists of well-proven and robust technology from reputable international suppliers. Bioretur has extensive experience and hundreds of thousands of operating hours from its own fish sludge treatment facilities, and therefore, we have assembled and tailored the interface to be highly reliable and require minimal maintenance from the fish farmers&#8217; side.<\/p>\n<p>All our systems are scalable. It&#8217;s easy to adapt and expand them over time, for example, if it becomes relevant to dry the sludge, purify the discharge water, or increase the capacity of the sludge treatment plant. The system can be delivered as a turnkey container solution or through customized on-site installation.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-2wf3is-e581f386b2e6e133c92eb9427f6b0bc6 av_three_fifth  avia-builder-el-5  el_after_av_two_fifth  avia-builder-el-last  flex_column_div  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-sub-av-m8x1do0g-5f2995b89f6df3e278dfed2d6ec64f18\">\n.av-hotspot-image-container .av-image-hotspot.av-m8x1d99v-4ae2bb96555ca61d20a8b49f8e1f1537{\ntop:57.4%;\nleft:16.8%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1d99v-4ae2bb96555ca61d20a8b49f8e1f1537 .av-image-hotspot_inner{\nbackground-color:#d8692d;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dejm-24e25781db0a3f98d3ea616b865b7520{\ntop:46.2%;\nleft:51.7%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dejm-24e25781db0a3f98d3ea616b865b7520 .av-image-hotspot_inner{\nbackground-color:#d8692d;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dim2-9458297bd02317f3cdd59957afa63e02{\ntop:71.9%;\nleft:47.1%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dim2-9458297bd02317f3cdd59957afa63e02 .av-image-hotspot_inner{\nbackground-color:#d8692d;\ncolor:#ffffff;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dmfh-be68108f0c5b57a00027b06ba0bea23f{\ntop:11.2%;\nleft:63%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-m8x1dmfh-be68108f0c5b57a00027b06ba0bea23f .av-image-hotspot_inner{\nbackground-color:#d8692d;\ncolor:#ffffff;\n}\n<\/style>\n<div  class='av-hotspot-image-container av-m8x1do0g-5f2995b89f6df3e278dfed2d6ec64f18  avia-builder-el-6  avia-builder-el-no-sibling  av-hotspot-numbered  av-non-fullwidth-hotspot-image'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class='av-hotspot-container'><div class='av-hotspot-container-inner-cell'><div class='av-hotspot-container-inner-wrap'><div class='av-image-hotspot av-m8x1d99v-4ae2bb96555ca61d20a8b49f8e1f1537 av-image-hotspot-1 ' data-avia-tooltip-position='left' data-avia-tooltip-alignment='centered' data-avia-tooltip-class='av-tt-large-width av-tt-pos-left av-tt-align-centered  main_color av-tt-hotspot' data-avia-tooltip='&lt;h3&gt;Holding tank&lt;\/h3&gt;\n&lt;p&gt;In this tank, sludge from the production process is collected. The sludge typically has a dry matter content between 0.1 \u2013 0.5%.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>1<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-m8x1dejm-24e25781db0a3f98d3ea616b865b7520 av-image-hotspot-2 ' data-avia-tooltip-position='right' data-avia-tooltip-alignment='centered' data-avia-tooltip-class='av-tt-xlarge-width av-tt-pos-right av-tt-align-centered  main_color av-tt-hotspot' data-avia-tooltip='&lt;h3&gt;Thickening&lt;\/h3&gt;\n&lt;p&gt;Polymer is added to aggregate the dry matter in the sludge into larger clumps. This makes it easier to separate the water, resulting in a cleaner effluent. The type and dosage of polymer are chosen based on what best suits the material.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>2<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-m8x1dim2-9458297bd02317f3cdd59957afa63e02 av-image-hotspot-3 ' data-avia-tooltip-position='bottom' data-avia-tooltip-alignment='centered' data-avia-tooltip-class='av-tt-xlarge-width av-tt-pos-below av-tt-align-centered  main_color av-tt-hotspot' data-avia-tooltip='&lt;h3&gt;Belt Filter&lt;\/h3&gt;\n&lt;p&gt;The belt filter removes most of the water from the sludge and is the first step in the mechanical dewatering process. The dry matter content of the sludge here reaches at least 4 \u2013 5%.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>3<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-m8x1dmfh-be68108f0c5b57a00027b06ba0bea23f av-image-hotspot-4 ' data-avia-tooltip-position='bottom' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-xlarge-width av-tt-pos-below av-tt-align-left  main_color av-tt-hotspot' data-avia-tooltip='&lt;h3&gt;Decanter&lt;\/h3&gt;\n&lt;p&gt;The decanter centrifuges more water out of the sludge, increasing the dry matter content to between 20 \u2013 30%. The effluent is sent back for further thickening and filtration.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>4<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><img data-opt-id=1589370485  decoding=\"async\" fetchpriority=\"high\" class='wp-image-5223 avia-img-lazy-loading-not-5223 avia_image' src=\"https:\/\/ml301dxcgwxm.i.optimole.com\/w:1030\/h:540\/q:mauto\/f:best\/ig:avif\/https:\/\/bioretur.no\/wp-content\/uploads\/2025\/03\/Slambehandling-anlegg-avvanning.png\" alt='Bioretur-avvanning-av-slam' title='Slambehandling anlegg avvanning'  height=\"540\" width=\"1030\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/ml301dxcgwxm.i.optimole.com\/w:1030\/h:540\/q:mauto\/f:best\/ig:avif\/https:\/\/bioretur.no\/wp-content\/uploads\/2025\/03\/Slambehandling-anlegg-avvanning.png 1030w, https:\/\/ml301dxcgwxm.i.optimole.com\/w:300\/h:157\/q:mauto\/f:best\/ig:avif\/https:\/\/bioretur.no\/wp-content\/uploads\/2025\/03\/Slambehandling-anlegg-avvanning.png 300w, 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technology<\/span><\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":4340,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"iawp_total_views":107,"footnotes":""},"class_list":["post-4812","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/pages\/4812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/comments?post=4812"}],"version-history":[{"count":0,"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/pages\/4812\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/media\/4340"}],"wp:attachment":[{"href":"https:\/\/bioretur.no\/en\/wp-json\/wp\/v2\/media?parent=4812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}