{"id":1726,"date":"2026-08-12T10:28:04","date_gmt":"2026-08-12T07:28:04","guid":{"rendered":"https:\/\/usbi.rtu.lv\/projekts\/komunalo-notekudenu-pecattirisana-ar-cikliskas-darbibas-fotobioreaktoru-tehnologiju-en\/"},"modified":"2026-08-12T10:28:04","modified_gmt":"2026-08-12T07:28:04","slug":"komunalo-notekudenu-pecattirisana-ar-cikliskas-darbibas-fotobioreaktoru-tehnologiju-en","status":"publish","type":"projekts","link":"https:\/\/usbi.rtu.lv\/en\/projekts\/komunalo-notekudenu-pecattirisana-ar-cikliskas-darbibas-fotobioreaktoru-tehnologiju-en\/","title":{"rendered":"Post-treatment of municipal wastewater using cyclic-operation photobioreactor technology"},"content":{"rendered":"<p>Phosphorus (P) runoff from wastewater and agriculture is one of the main causes of eutrophication, where &gt; 100 \u03bcg P\/L is considered sufficient to promote eutrophication. Chemical precipitation and coagulation are the most commonly used methods for removing phosphorus in the wastewater post-treatment phase. However, the implementation and operating costs of these methods are high, and their use generates additional waste. The use of algae for wastewater treatment is recognised as a cheaper and more environmentally friendly alternative, especially in small wastewater plants (PE&lt;2000). Microalgae can efficiently remove nitrogen and phosphorus from wastewater at low organic-carbon levels, and the biomass produced is a raw material for further production of biofuel or soil enricher. However, because of slow biomass growth and nutrient consumption, these technologies take up a lot of space. The aim of the project is to demonstrate the application of a cyclic-operation photobioreactor for accelerated phosphorus reduction to very low levels, using the ability of algae to consume increased amounts of phosphorus under certain conditions.<\/p>","protected":false},"featured_media":1415,"template":"","project-category":[54],"class_list":["post-1726","projekts","type-projekts","status-publish","has-post-thumbnail","hentry","project-category-national-projects-en"],"meta_box":{"taxonomy_advanced_korwzz473n":[{"term_id":54,"name":"National projects","slug":"national-projects-en","term_group":0,"term_taxonomy_id":54,"taxonomy":"project-category","description":"","parent":0,"count":12,"filter":"raw","term_order":"0"}],"radit_projekta_template":"1","saite_uz_projektu":"https:\/\/www.lzp.gov.lv\/lv\/projekts\/komunalo-notekudenu-pecattirisana-ar-cikliskas-darbibas-fotobioreaktoru-tehnologiju#:~:text=Mikroa%C4%BCges%20no%20notek%C5%ABdens%20sp%C4%93j%20efekt%C4%ABvi%20izdal%C4%ABt%20sl%C4%81pekli%20un,vielu%20pat%C4%93ri%C5%86a%20d%C4%93%C4%BC%20%C5%A1%C4%ABs%20tehnolo%C4%A3ijas%20aiz%C5%86em%20daudz%20vietas","gads_no_lidz":"2020-2022","apraksts":"<!-- wp:paragraph --><p>Phosphorus (P) runoff from wastewater and agriculture is one of the main causes of eutrophication, where &gt; 100 \u03bcg P\/L is considered sufficient to promote eutrophication. Chemical precipitation and coagulation are the most commonly used methods for removing phosphorus in the wastewater post-treatment phase. However, the implementation and operating costs of these methods are high, and their use generates additional waste. The use of algae for wastewater treatment is recognised as a cheaper and more environmentally friendly alternative, especially in small wastewater plants (PE&lt;2000). Microalgae can efficiently remove nitrogen and phosphorus from wastewater at low organic-carbon levels, and the biomass produced is a raw material for further production of biofuel or soil enricher. However, because of slow biomass growth and nutrient consumption, these technologies take up a lot of space. The aim of the project is to demonstrate the application of a cyclic-operation photobioreactor for accelerated phosphorus reduction to very low levels, using the ability of algae to consume increased amounts of phosphorus under certain conditions.<\/p><!-- \/wp:paragraph -->","show_in_loops":"1"},"_links":{"self":[{"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/projekts\/1726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/projekts"}],"about":[{"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/types\/projekts"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/media\/1415"}],"wp:attachment":[{"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/media?parent=1726"}],"wp:term":[{"taxonomy":"project-category","embeddable":true,"href":"https:\/\/usbi.rtu.lv\/en\/wp-json\/wp\/v2\/project-category?post=1726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}