{"id":9534,"date":"2022-12-16T12:38:12","date_gmt":"2022-12-16T11:38:12","guid":{"rendered":"https:\/\/www.ceab.csic.es\/publicat-linforme-tecnic-vol-5-dun-dels-experiments-de-lurl\/"},"modified":"2022-12-16T12:38:12","modified_gmt":"2022-12-16T11:38:12","slug":"publicat-linforme-tecnic-vol-5-dun-dels-experiments-de-lurl","status":"publish","type":"post","link":"https:\/\/www.ceab.csic.es\/en\/publicat-linforme-tecnic-vol-5-dun-dels-experiments-de-lurl\/","title":{"rendered":"Publicat l\u2019Informe t\u00e8cnic (vol.5) d\u2019un dels experiments de l\u2019URL"},"content":{"rendered":"<p>L&#8217;any passat es va dur a terme a les instal\u00b7lacions de l&#8217;<a href=\"https:\/\/urbanriverlab.com\/\" target=\"_blank\" rel=\"noopener\">Urban River Lab<\/a>, <span lang=\"ca-ES\">un estudi per avaluar l\u2019efecte del temps de resid\u00e8ncia sobre diversos par\u00e0metres clau que poden tenir unes conseq\u00fc\u00e8ncies importants sobre la qualitat de l\u2019aigua. <\/span><\/p>\n<p><span lang=\"ca-ES\">El treball ha estat realitzat per investigadors i investigadores del <strong>Centre d\u2019Estudis Avan\u00e7ats de Blanes<\/strong> i de la <strong>Universitat de Barcelona<\/strong> i, per t\u00e8cnics de<strong> Naturalea<\/strong>. L\u2019estudi no hauria estat possible sense el suport t\u00e8cnic i econ\u00f2mic del <strong>Consorci Bes\u00f2s Tordera.<\/strong> L\u2019informe t\u00e8cnic es pot consultar ja a la web de l\u2019Urban River Lab.\u00a0<\/span><\/p>\n<h3><span lang=\"ca-ES\"><b>El temps de resid\u00e8ncia de l\u2019aigua afecta als organismes vius que hi viuen i a la qualitat de l\u2019aigua<\/b><\/span><\/h3>\n<p><span lang=\"ca-ES\">L\u2019experiment es va realitzar en els 12 canals de 12m de l\u2019URL alimentats per aigua residual tractada provinent de l\u2019efluent de la estaci\u00f3 depuradora d\u2019aig\u00fces residuals (EDAR) de Montorn\u00e8s del Vall\u00e8s. <\/span><\/p>\n<p><span lang=\"ca-ES\">Dins d\u2019aquest context, l\u2019objectiu de l\u2019estudi ha estat avaluar l\u2019efecte del temps de residencia de l\u2019aigua (rang de 18 a 141 hores) sobre diversos par\u00e0metres que poden influenciar-ne la qualitat: la terbolesa, els s\u00f2lids en suspensi\u00f3, la biomassa de productors primaris, la concentraci\u00f3 d\u2019oxigen i la capacitat d\u2019eliminaci\u00f3 de nutrients<!-- \u00c9s una mica redundant amb el primer par\u00e0graf no? -->.<\/span><\/p>\n<h3><span lang=\"ca-ES\"><b><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-56174\" src=\"https:\/\/www.ceab.csic.es\/site\/wp-content\/uploads\/2022\/12\/Diseno-sin-titulo2.png\" alt=\" width=\"1920\" height=\"1080\" \/>La capacitat d\u2019eliminaci\u00f3 dels nutrients dissolts a l\u2019aigua dep\u00e8n del temps de resid\u00e8ncia<\/b><\/span><\/h3>\n<p><span lang=\"ca-ES\">Els resultats mostren que la terbolesa i els s\u00f2lids en suspensi\u00f3 augmentaven a mesura que el temps de resid\u00e8ncia era m\u00e9s gran. Ara b\u00e9, aquesta relaci\u00f3 no era lineal, sin\u00f3 que tendia a estabilitzar-se. Aquesta mateixa tend\u00e8ncia es va observar amb la biomassa de productors primaris a la columna d\u2019aigua. Aquest fet, juntament amb l\u2019elevat percentatge de mat\u00e8ria org\u00e0nica dels s\u00f2lids en suspensi\u00f3, suggerien que la terbolesa de l\u2019aigua era causada per les comunitats de microorganismes i algues.<\/span><\/p>\n<p><span lang=\"ca-ES\">En general, les concentracions d\u2019oxigen als canals van ser molt elevades, arribant a condicions de sobresaturaci\u00f3 de fins al 450%. Finalment, els percentatges d\u2019eliminaci\u00f3 d\u2019amoni, nitrat i fosfat tamb\u00e9 augmentaven a mesura que augmentava el temps de resid\u00e8ncia de l\u2019aigua per\u00f2 tendien a estabilitzar-se de manera independent al temps de resid\u00e8ncia segu\u00eds augmentant. El valor m\u00e0xim d\u2019eliminaci\u00f3 era similar pels tres nutrients i s\u2019assolia al voltant de les 37 h de temps de resid\u00e8ncia. Els resultats podrien estar explicats pel fet que a major temps de resid\u00e8ncia, era major interacci\u00f3 entre els nutrients i els organismes, i per tant, hi pot haver un augment de l\u2019efici\u00e8ncia de retenci\u00f3.<\/span><\/p>\n<p><span lang=\"ca-ES\">Dins del context de la depuraci\u00f3 d\u2019aig\u00fces residuals, aquests resultats poden ajudar a millorar el funcionament i l\u2019efici\u00e8ncia d\u2019eliminaci\u00f3 de nutrients com l\u2019amoni o els nitrats, elements que s\u00f3n essencials per als organismes dels ecosistemes i alhora s\u00f3n els que determinen la qualitat de l\u2019aigua, de les basses artificials amb plantes aqu\u00e0tiques dissenyades per a tractar aig\u00fces residuals. <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8217;any passat es va dur a terme a les instal\u00b7lacions de l&#8217;Urban River Lab, un estudi per avaluar l\u2019efecte del temps de resid\u00e8ncia sobre diversos par\u00e0metres clau que poden tenir unes conseq\u00fc\u00e8ncies importants sobre la qualitat de l\u2019aigua. El treball ha estat realitzat per investigadors i investigadores del Centre d\u2019Estudis Avan\u00e7ats de Blanes i de&hellip;&nbsp;<a href=\"https:\/\/www.ceab.csic.es\/en\/publicat-linforme-tecnic-vol-5-dun-dels-experiments-de-lurl\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">Publicat l\u2019Informe t\u00e8cnic (vol.5) d\u2019un dels experiments de l\u2019URL<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":9008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[334],"tags":[699,548,607],"class_list":["post-9534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-nature-based-solutions","tag-urban-river-lab","tag-url"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Publicat l\u2019Informe t\u00e8cnic (vol.5) d\u2019un dels experiments de l\u2019URL | CEAB<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ceab.csic.es\/en\/publicat-linforme-tecnic-vol-5-dun-dels-experiments-de-lurl\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Publicat l\u2019Informe t\u00e8cnic (vol.5) d\u2019un dels experiments de l\u2019URL | CEAB\" \/>\n<meta property=\"og:description\" content=\"L&#8217;any passat es va dur a terme a les instal\u00b7lacions de l&#8217;Urban River Lab, un estudi per avaluar l\u2019efecte del temps de resid\u00e8ncia sobre diversos par\u00e0metres clau que poden tenir unes conseq\u00fc\u00e8ncies importants sobre la qualitat de l\u2019aigua. 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