{"id":1695,"date":"2018-09-01T14:42:43","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"https:\/\/nis.gl\/?post_type=projekt&#038;p=1695"},"modified":"2021-02-24T13:59:44","modified_gmt":"2021-02-24T13:59:44","slug":"brug-af-rejseskaller-til-fjernelse-fra-mindevand-i-en-sulfid-bioreaktor","status":"publish","type":"projekt","link":"https:\/\/nis.gl\/da\/projekt\/brug-af-rejseskaller-til-fjernelse-fra-mindevand-i-en-sulfid-bioreaktor\/","title":{"rendered":"Brug af rejeskaller til fjernelse fra minevand i en sulfid bioreaktor"},"content":{"rendered":"<p><strong>Projektleder:<br \/>\n<\/strong>Morten Birch Larsen<\/p>\n<p><strong>Fakultet \/ Forskningsinstitution:<br \/>\n<\/strong>Naturvidenskab \/ Gr\u00f8nlands Naturinstitut<\/p>\n<p><strong>Titel:<br \/>\n<\/strong>Brug af rejeskaller til fjernelse fra minevand i en sulfid bioreaktor<\/p>\n<p><strong>Beskrivelse:<br \/>\n<\/strong>Ved minedrift er udsivning af metaller et velkendt problem. Metallerne kan v\u00e6re giftige og udg\u00f8re en risiko for organismer i b\u00e5de ferskvands- og havvandsmilj\u00f8et. Metallerne bioakkumuleres, hvilket g\u00f8r, at en r\u00e6kke pattedyr i Gr\u00f8nland kan indeholde meget h\u00f8je koncentrationer af tungmetaller, og n\u00e5r dyrene spises, kan metallerne optages og udg\u00f8re en sundhedsrisiko for mennesker.<\/p>\n<p>I Gr\u00f8nland har minedrift i Maarmorilik, Ivittuut og Mestersvig medf\u00e6rt udsivning af store m\u00e6ngder tungmetaller, hvilket har medf\u00e6rt uhensigtsm\u00e6ssige p\u00e5virkninger af ilj\u00f8et.<\/p>\n<p>Et nyligt studie af Larsen et al. (2018) har vist, at rejeskaller har stort potentiale for at tilbageholde tungmetaller, og dermed minimere udsivning til milj\u00f8et. Rejeskallerne indeholder et polysaccarid (chitin), der i struktur minder meget om cellulose, og er i stand til at absorbere store m\u00e6ngder metaller. Samtidig indeholder rejeskallerne organisk kulstof, som ved nedbrydning kan skabe iltfrie forhold. Dette kan medf\u00f8re at der dannes sulfid (S-), som vil binde sig med metallerne og udf\u00e6lde som et fast stof.<\/p>\n<p>Form\u00e5let med dette projekt er at unders\u00f8ge rejeskallernes kapacitet for binding af tungmetaller i en sulfid bioreaktor.<\/p>\n<ul>\n<li>Hvor stor har rejeskaller ved brug i en sulfid bioreaktor?<\/li>\n<li>Hvilken opholdstid vil det kr\u00e6ve at opn\u00e5 en tilstr\u00e6kkelig udf\u00e6ldning\/binding af tungmetaller?<\/li>\n<\/ul>\n<p><strong>Metoder for inklusion af samfundet og formidling overfor samfundet:<br \/>\n<\/strong>Den gr\u00f8nlandske fiskeindustri vil blive kontaktet b\u00e5de men henblik p\u00e5 at informere om projektet og indg\u00e5 et eventuelt samarbejde.<\/p>\n<p>Resultaterne fra projektet vil blive formidlet ved en popul\u00e6rvidenskabelig artikel i eksempelvis Sermitsiaq eller p\u00e5 videnskab.dk. Det vil ogs\u00e5 v\u00e6re en mulighed at pr\u00e6sentere resultaterne ved et offentligt foredrag.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Projektleder: Morten Birch Larsen Fakultet \/ Forskningsinstitution: Naturvidenskab \/ Gr\u00f8nlands Naturinstitut Titel: Brug af rejeskaller til fjernelse fra minevand i en sulfid bioreaktor Beskrivelse: Ved minedrift er udsivning af metaller et velkendt problem. Metallerne kan v\u00e6re giftige og udg\u00f8re en risiko for organismer i b\u00e5de ferskvands- og havvandsmilj\u00f8et. Metallerne bioakkumuleres, hvilket g\u00f8r, at en r\u00e6kke [&hellip;]<\/p>\n","protected":false},"parent":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","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":"","background-image":"","background-repeat":"repeat","background-position":"center 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