{"id":14092,"date":"2023-06-27T08:24:57","date_gmt":"2023-06-27T06:24:57","guid":{"rendered":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/?p=14092"},"modified":"2023-06-27T08:28:20","modified_gmt":"2023-06-27T06:28:20","slug":"treball-de-recerca-seleccionat-en-lambit-de-sostenibilitat-a-les-23es-jornades-cientifiques-de-lhospitalet","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/general\/treball-de-recerca-seleccionat-en-lambit-de-sostenibilitat-a-les-23es-jornades-cientifiques-de-lhospitalet\/","title":{"rendered":"Treball de recerca seleccionat en l\u2019\u00e0mbit de sostenibilitat a les 23es Jornades Cient\u00edfiques de L’Hospitalet"},"content":{"rendered":"

\"\"<\/a>Actualment, tothom t\u00e9 al seu abast un tel\u00e8fon m\u00f2bil, una tauleta t\u00e0ctil, un ordinador, una bicicleta o un cotxe, que \u00a0requereixen per a la seva fabricaci\u00f3 metalls del grup de terres rares, de tal manera que s\u2019han fet imprescindibles per a la societat actual. Una part de la poblaci\u00f3 s\u2019est\u00e0 adonant que el nostre planeta t\u00e9 uns recursos limitats i que extreure\u2019ls t\u00e9 conseq\u00fc\u00e8ncies mediambientals. Aix\u00f2 est\u00e0 generant una certa controv\u00e8rsia, ja que es fa \u00fas de les noves tecnologies per\u00f2 l\u2019extracci\u00f3 d\u2019aquests elements comporta la contaminaci\u00f3 del medi ambient. La Xina i els Estats Units s\u00f3n els pa\u00efsos capdavanters en l\u2019extracci\u00f3 de terres rares i en el desenvolupament de les noves tecnologies, per\u00f2 tamb\u00e9 se\u2019ls est\u00e0 demanant que adoptin pol\u00edtiques mediambientals sostenibles. Podria ser doncs el reciclatge d\u2019aquests metalls una d\u2019elles?<\/p>\n

El treball \u201cExpressi\u00f3 mineral\u00f2gica dels elements de terres rares en la pols acumulada a les carreteres de l\u2019Hospitalet de Llobregat: un nou dip\u00f2sit mineral no convencional d\u2019origen urb\u00e0?\u201d de Marc V\u00e0zquez Bell\u00f3n va quedar finalista en l’\u00e0mbit de sostenibilitat de les 23es Jornades Cient\u00edfiques de LH. La recerca s\u2019ha basat en comprovar si la pols que s’acumula a les carreteres cont\u00e9 terres rares i si hi ha una quantitat suficient perqu\u00e8 puguin ser reciclades. Els objectius d’aquest treball han estat: a) Determinar les zones de la ciutat de l’Hospitalet de Llobregat on s’acumula suficient quantitat de pols de carretera per obtenir mostres. b) Recollir les mostres de les zones que tenen un important tr\u00e0nsit rodat amb gran quantitat de pols de carretera. c) Realitzar una an\u00e0lisi mineral\u00f2gica de les mostres amb un microscopi electr\u00f2nic. d) Comprovar si les mostres de la pols de carretera contenen terres rares. Per obtenir els resultats, el primer que s’ha fet \u00e9s seleccionar determinades zones on el tr\u00e0nsit dels cotxes sigui abundant per obtenir les mostres. Quan les mostres ja han estat recollides, s’han tamisat, tant per via seca com per via humida, per obtenir part\u00edcules de di\u00e0metres m\u00e9s petits, que \u00e9s la mida que solen tenir. Despr\u00e9s de ser processades s’han posat en una proveta amb resina per posteriorment ser observades en un microscopi electr\u00f2nic.<\/p>\n

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    Actualment, tothom t\u00e9 al seu abast un tel\u00e8fon m\u00f2bil, una tauleta t\u00e0ctil, un ordinador, una bicicleta o un cotxe, que […]<\/p>\n","protected":false},"author":163,"featured_media":14093,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","theme-transparent-header-meta":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[8,304,477,3,1,29,133],"tags":[671,496,669,670],"class_list":["post-14092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-batxillerat","category-departament-de-ciencies-naturals","category-departament-de-quimica-ambiental","category-eso","category-general","category-portada","category-treball-de-recerca","tag-jornades-cientifiques","tag-mediambient","tag-mineralogia","tag-sostenibilitat"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/posts\/14092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/users\/163"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/comments?post=14092"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/posts\/14092\/revisions"}],"predecessor-version":[{"id":14120,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/posts\/14092\/revisions\/14120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/media\/14093"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/media?parent=14092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/categories?post=14092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-merce-rodoreda\/wp-json\/wp\/v2\/tags?post=14092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}