{"id":17091,"date":"2021-04-15T08:47:29","date_gmt":"2021-04-15T06:47:29","guid":{"rendered":"http:\/\/agora.xtec.cat\/insandreunin\/?p=17091"},"modified":"2021-04-15T08:47:29","modified_gmt":"2021-04-15T06:47:29","slug":"simulem-el-proces-de-depuracio-daigues-residuals-a-les-practiques-de-laboratori","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/insandreunin\/general\/simulem-el-proces-de-depuracio-daigues-residuals-a-les-practiques-de-laboratori\/","title":{"rendered":"SIMULEM EL PROC\u00c9S DE DEPURACI\u00d3 D’AIG\u00dcES RESIDUALS A LES PR\u00c0CTIQUES DE LABORATORI"},"content":{"rendered":"

Els alumnes de F\u00edsica i Qu\u00edmica de 2n ESO estan treballant la unitat did\u00e0ctica que fa refer\u00e8ncia a la mat\u00e8ria i, m\u00e9s concretament, a les subst\u00e0ncies pures i\u00a0 els diferents tipus de mescles, ja siguin homog\u00e8nies o dissolucions i les heterog\u00e8nies.<\/p>\n

Hem fet esment al tractament que es fa en una EDAR (estaci\u00f3 depuradora d’aig\u00fces residuals) de les aig\u00fces fecals i els tipus de contaminants que podem trobar en un abocament, aix\u00ed com podem millorar amb processos f\u00edsics i qu\u00edmics la qualitat de l’aigua i retornar-la al medi ambient sense malmetre’l.<\/span>A classe hem parlat de la nova cultura de l’aigua i com podem sensibilitzar la poblaci\u00f3 per fer-ne un consum responsable i minimitzar al m\u00e0xim l’impacte de les activitats humanes al medi ambient.<\/p>\n

Per conscienciar els nostres alumnes hem fet una pr\u00e0ctica al laboratori a partir d’un aigua residual (una mescla heterog\u00e8nia) que hem generat nosaltres amb els seg\u00fcents components:<\/p>\n

Aigua, oli, colorant alimentari, terra negra de jard\u00ed, sals dissoltes i granul.lats de porexpan (simulant pl\u00e0stics).<\/p>\n

El procediment de depuraci\u00f3 consisteix en tres fases:<\/p>\n

1a fase: garbellament o tamisatge<\/em> amb un colador casol\u00e0 per separar-ne el porexpan i la terra negra de jard\u00ed.<\/p>\n

2a fase: filtraci\u00f3<\/em> emprant una paperina de paper blanc de filtre per separar la sal, les restes de grans de terra m\u00e9s fins que havien passat pel colador.<\/p>\n

3a fase: una decantaci\u00f3 <\/em>amb un embut de decantaci\u00f3 de la dissoluci\u00f3 obtinguda en la 2a fase per tal de separar per densitats i inmiscibilitat dels l\u00edquids l’oli, menys dens, i l’aigua acolorida.<\/p>\n

Ha estat una pr\u00e0ctica, la mar de divertida!<\/p>\n\n\n\n
\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Els alumnes de F\u00edsica i Qu\u00edmica de 2n ESO estan treballant la unitat did\u00e0ctica que fa refer\u00e8ncia a la mat\u00e8ria i, m\u00e9s concretament, a les subst\u00e0ncies pures i\u00a0 els diferents tipus de mescles, ja siguin homog\u00e8nies o dissolucions i les heterog\u00e8nies. Hem fet esment al tractament que es fa en una EDAR (estaci\u00f3 depuradora d’aig\u00fces […]<\/p>\n","protected":false},"author":11,"featured_media":17093,"comment_status":"closed","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":"","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":[5,223,1,93,29],"tags":[],"class_list":["post-17091","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eso-2","category-experimentals","category-general","category-novetats","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/posts\/17091","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/comments?post=17091"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/posts\/17091\/revisions"}],"predecessor-version":[{"id":17097,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/posts\/17091\/revisions\/17097"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/media\/17093"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/media?parent=17091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/categories?post=17091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/insandreunin\/wp-json\/wp\/v2\/tags?post=17091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}