{"id":4583,"date":"2019-03-08T12:17:11","date_gmt":"2019-03-08T11:17:11","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesperefontdevila\/?p=4583"},"modified":"2025-07-26T09:42:52","modified_gmt":"2025-07-26T07:42:52","slug":"per-un-institut-sense-alumini","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iesperefontdevila\/eso\/2eso\/per-un-institut-sense-alumini\/","title":{"rendered":"Per un institut sense alumini"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Molta gent i, segurament molts de vosaltres, esteu acostumats a embolicar els <\/span><b>entrepans<\/b><span style=\"font-weight: 400;\"> amb <\/span><b>paper d\u2019alumini<\/b><span style=\"font-weight: 400;\">. Malgrat que l\u2019alumini \u00e9s el segon metall m\u00e9s abundant del nostre planeta, la seva extracci\u00f3 i purificaci\u00f3 t\u00e9 un <\/span><b>cost ambiental molt elevat<\/b><span style=\"font-weight: 400;\">. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u2019alumini s\u2019a\u00eflla de la <\/span><b>bauxita<\/b><span style=\"font-weight: 400;\"> per\u00f2 els jaciments d\u2019aquest tipus de roca d\u2019Europa, de l\u2019Am\u00e8rica del Nord i de la Xina estan quasi esgotats. Actualment la seva extracci\u00f3 \u00e9s rendible en alguns pa\u00efsos d\u2019\u00c0sia (\u00cdndia), d\u2019Oceania (Indon\u00e8sia i Austr\u00e0lia), de l\u2019Am\u00e8rica del Sud (Brasil i Guayana) i d\u2019\u00c0frica (Sierra Leona i Guinea). Les <\/span><b>activitats mineres<\/b><span style=\"font-weight: 400;\"> que es fan en aquests pa\u00efsos per extreure la bauxita provoquen la <\/span><b>destrucci\u00f3 de les seves reserves naturals<\/b><span style=\"font-weight: 400;\"> i <\/span><b>contaminen l\u2019aire, el s\u00f2l i l\u2019aigua<\/b><span style=\"font-weight: 400;\">. Tot aix\u00f2 es tradueix en un empobriment de la biodiversitat, una menor disponibilitat d\u2019aigua potable, menys superf\u00edcie de terreny cultivable i una major incid\u00e8ncia de malalties. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">La <\/span><b>producci\u00f3 de l\u2019alumini<\/b><span style=\"font-weight: 400;\"> implica una <\/span><b>despesa energ\u00e8tica enorme<\/b><span style=\"font-weight: 400;\">, tres vegades superior a la de l\u2019obtenci\u00f3 de la mateixa quantitat d\u2019acer. Tamb\u00e9 \u00e9s un proc\u00e9s que <\/span><b>contamina molt<\/b><span style=\"font-weight: 400;\">. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Per fabricar cada <\/span><b>rotllo de paper d\u2019alumini<\/b><span style=\"font-weight: 400;\"> que gastem a les nostres llars es <\/span><b>produeix<\/b><span style=\"font-weight: 400;\">: <\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>1,3 kg de fangs amb metalls pesants<\/b><span style=\"font-weight: 400;\">, els quals estan associats a l\u2019aparici\u00f3 de c\u00e0ncers i malalties del sistema nervi\u00f3s.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>60 gr d\u2019\u00f2xid de sofre<\/b><span style=\"font-weight: 400;\">, agent causant de la pluja \u00e0cida.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>4000 litres de fluoramina<\/b><span style=\"font-weight: 400;\">, un gas irritant, t\u00f2xic per a les plantes i que produeix alteracions als ossos, dents, ronyons i cabells.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><em><span style=\"font-weight: 400;\">Adaptat de: http:\/\/mediambient.gencat.cat\/web\/.content\/home\/ambits_dactuacio\/educacio_i_sostenibilitat\/educacio_per_a_la_sostenibilitat\/suport_educatiu\/recursos_educatius\/residus\/alumini\/article_sobre_l_alumini.pdf<\/span><\/em><\/p>\n<p><b>Qu\u00e8 estem fent al nostre institut per reduir l\u2019\u00fas del paper d\u2019alumini?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Durant el primer trimestre del <\/span><b>curs 2018\/19<\/b><span style=\"font-weight: 400;\">, els alumnes de <\/span><b>2<\/b><b>on<\/b><span style=\"font-weight: 400;\"> d\u2019<\/span><b>ESO<\/b><span style=\"font-weight: 400;\"> han realitzat un <\/span><b>taller de confecci\u00f3 de <\/b><b><i>boc &amp; rolls<\/i><\/b><span style=\"font-weight: 400;\"> a l\u2019assignatura de <\/span><b>Tecnologia<\/b><span style=\"font-weight: 400;\">, supervisats per la professora <\/span><b>Rosa Fern\u00e0ndez<\/b><span style=\"font-weight: 400;\">. En aquest taller, han seguit tot el proc\u00e9s tecnol\u00f2gic per fabricar els <\/span><b><i>boc &amp; rolls <\/i><\/b><span style=\"font-weight: 400;\">mitjan\u00e7ant materials com estovalles plastificades, cintes de velcro, fil i agulla de cosir. Ara tots els alumnes d\u2019aquestes classes ja poden contribuir a la reducci\u00f3 de l\u2019\u00fas del paper d\u2019alumini embolicant els entrepans de l\u2019esmorzar amb el seu <\/span><b><i>boc &amp; rol<\/i><\/b><i><span style=\"font-weight: 400;\">l<\/span><\/i><span style=\"font-weight: 400;\">!<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4585 aligncenter\" src=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno-1024x588.jpg\" alt=\"\" width=\"533\" height=\"306\" srcset=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno-1024x588.jpg 1024w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno-300x172.jpg 300w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno-768x441.jpg 768w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/boc-roll-proces-tecno.jpg 1585w\" sizes=\"auto, (max-width: 533px) 100vw, 533px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Materials utilitzats durant el proc\u00e9s tecnol\u00f2gic de fabricaci\u00f3 \u00a0dels <\/span><i><span style=\"font-weight: 400;\">boc &amp; rolls<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4586 aligncenter\" src=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger-827x1024.jpg\" alt=\"\" width=\"481\" height=\"596\" srcset=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger-827x1024.jpg 827w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger-242x300.jpg 242w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger-768x951.jpg 768w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/rosa-roger.jpg 1193w\" sizes=\"auto, (max-width: 481px) 100vw, 481px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 La professora Rosa Fern\u00e0ndez amb en Roger Barragan (alumne de 2<\/span><span style=\"font-weight: 400;\">on<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0ESO A i membre del Comit\u00e8\u00a0 \u00a0Ambiental) mostrant els <\/span><i><span style=\"font-weight: 400;\">boc &amp; rolls<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Durant aquest <\/span><b>segon trimestre<\/b><span style=\"font-weight: 400;\">, els alumnes del mateix nivell han fet una primera <\/span><b>valoraci\u00f3 de l\u2019\u00fas dels <\/b><b><i>boc &amp; rolls<\/i><\/b> <span style=\"font-weight: 400;\">en el centre dins l\u2019<\/span><b>assignatura d\u2019angl\u00e8s<\/b><span style=\"font-weight: 400;\">, en el marc del projecte <\/span><b><i>e-twinning \u201cHelp us save our planet\u201d<\/i><\/b><span style=\"font-weight: 400;\"> i supervisats per la professora <\/span><b>Meritxell Escayola<\/b><span style=\"font-weight: 400;\">. Les tasques dels alumnes han consistit en dissenyar una <\/span><b>enquesta <\/b><span style=\"font-weight: 400;\">que han fet a la resta d\u2019estudiants del centre. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A continuaci\u00f3 podeu observar els resultats obtinguts a partir d\u2019una <\/span><b>mostra de 101 alumnes<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/grafic.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4584\" src=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/grafic.png\" alt=\"\" width=\"600\" height=\"371\" srcset=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/grafic.png 600w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2019\/03\/grafic-300x186.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p><span style=\"font-weight: 400;\">Com podeu veure, encara queda molt feina per fer, ja que <\/span><b>quasi la meitat dels enquestats encara utilitzen paper d\u2019alumini per embolicar els seus entrepans<\/b><span style=\"font-weight: 400;\"> i <\/span><b>menys d\u2019un 20% fan servir el<\/b><b><i> boc &amp; roll<\/i><\/b><i><span style=\"font-weight: 400;\">.<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">En breu, i aprofitant el mateix projecte, s\u2019iniciar\u00e0 una <\/span><b>campanya de sensibilitzaci\u00f3 <\/b><span style=\"font-weight: 400;\">per reduir l\u2019\u00fas a l\u2019institut d\u2019aquest material tan insostenible. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Us seguirem informant\u2026\u2026.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Molta gent i, segurament molts de vosaltres, esteu acostumats a embolicar els entrepans amb paper d\u2019alumini. Malgrat que l\u2019alumini \u00e9s el segon metall m\u00e9s abundant del nostre planeta, la seva extracci\u00f3 i purificaci\u00f3 t\u00e9 un cost ambiental molt elevat. L\u2019alumini s\u2019a\u00eflla de la bauxita per\u00f2 els jaciments d\u2019aquest tipus de roca d\u2019Europa, de l\u2019Am\u00e8rica del [&hellip;]<\/p>\n","protected":false},"author":85,"featured_media":4585,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","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":"","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":"set","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":[29,5,179,235],"tags":[],"class_list":["post-4583","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-portada","category-2eso","category-comite_ambiental","category-promocio_2017-23"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/4583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/users\/85"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/comments?post=4583"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/4583\/revisions"}],"predecessor-version":[{"id":10670,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/4583\/revisions\/10670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/media\/4585"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/media?parent=4583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/categories?post=4583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/tags?post=4583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}