{"id":4171,"date":"2026-09-19T19:34:16","date_gmt":"2026-09-19T16:34:16","guid":{"rendered":"https:\/\/www.biometa.fi\/?p=4171"},"modified":"2026-10-01T19:40:30","modified_gmt":"2026-10-01T16:40:30","slug":"first-pilot-results-support-the-potential-of-biometa-finlands-cegsb-technology-for-energy-efficient-wastewater-treatment","status":"publish","type":"post","link":"https:\/\/www.biometa.fi\/en\/first-pilot-results-support-the-potential-of-biometa-finlands-cegsb-technology-for-energy-efficient-wastewater-treatment\/","title":{"rendered":"First Pilot Results Support the Potential of Biometa Finland\u2019s CEGSB Technology for Energy-Efficient Wastewater Treatment"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The first independent analytical results have been obtained from the pilot testing of Biometa Finland\u2019s CEGSB (Carrier Enhanced Granular Sludge Bed) technology at the Ranua municipal wastewater treatment plant in Finland.<br><br>The pilot project is being carried out in cooperation with Pohjois-Suomen Biokaasu Oy and Ranua Infra Oy. The objective is to evaluate the effectiveness of high-rate pretreatment in reducing organic load before conventional wastewater treatment and to assess the technology\u2019s suitability for future energy-efficient wastewater treatment solutions.<br><br>The pilot currently treats only a small sidestream of incoming municipal wastewater. To date, 48 m\u00b3 of raw wastewater has been processed at an average flow rate of 1.6 m\u00b3 per day.<br><br>Independent analyses showed a reduction of 63% in biological oxygen demand (BOD<sub>7<\/sub>) and 15% in chemical oxygen demand (COD). The observed COD reduction approached the theoretical maximum expected for the wastewater characteristics used in the pilot.<br><br>The pilot reactor has a liquid volume of only 0.8 m\u00b3. Achieving the same treatment capacity with a conventional continuously stirred biological process would require 32 m\u00b3 of reactor volume, corresponding to a reactor 40 times larger.<br><br>The revised EU Urban Wastewater Treatment Directive is accelerating the transition toward energy-neutral and more sustainable wastewater treatment systems. Biometa Finland\u2019s approach focuses on reducing organic load before energy-intensive treatment stages, creating opportunities for lower energy consumption, improved process efficiency and more compact treatment infrastructure.<br><br>Pilot testing will continue under varying loading conditions and operating parameters to further evaluate process performance, scale-up potential and full-scale design criteria.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The first independent analytical results have been obtained from the pilot testing of Biometa Finland\u2019s CEGSB (Carrier Enhanced Granular Sludge Bed) technology at the Ranua municipal wastewater treatment plant in Finland. The pilot project is being carried out in cooperation with Pohjois-Suomen Biokaasu Oy and Ranua Infra Oy. The objective is to evaluate the effectiveness [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-4171","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/posts\/4171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/comments?post=4171"}],"version-history":[{"count":1,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/posts\/4171\/revisions"}],"predecessor-version":[{"id":4172,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/posts\/4171\/revisions\/4172"}],"wp:attachment":[{"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/media?parent=4171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/categories?post=4171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.biometa.fi\/en\/wp-json\/wp\/v2\/tags?post=4171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}