{"id":15362,"date":"2018-03-09T09:02:30","date_gmt":"2018-03-09T09:02:30","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/contaminacion-de-suelos-por-el-vertido-de-una-mina-de-pirita-aznalcollar-espana\/"},"modified":"2018-03-09T09:02:30","modified_gmt":"2018-03-09T09:02:30","slug":"contaminacion-de-suelos-por-el-vertido-de-una-mina-de-pirita-aznalcollar-espana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-tierra-y-del-espacio\/contaminacion-de-suelos-por-el-vertido-de-una-mina-de-pirita-aznalcollar-espana\/","title":{"rendered":"Contaminaci\u00f3n de suelos por el vertido de una mina de pirita (aznalc\u00f3llar, espa\u00f1a)"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Francisco Jos\u00e9 Mart\u00edn Peinado <\/strong><\/h2>\n<p>El 25 de abril de 1998 la rotura de uno de los diques de contenci\u00f3n de las balsa de acumulaci\u00f3n de est\u00e9riles de la mina de aznalc\u00f3llar (sevilla) verti\u00f3 unos 2 hm3 de lodos y 4 hm3 de aguas \u00e1cidas a los r\u00edos agrio y guadimar. se afectaron 4286 hay, en los primeros 10 cent\u00edmetros de los suelos, se superaron los niveles cr\u00edticos establecidos en el 82% del total de superficie afectada por los lodos en el caso del as, el 39% en el zn, el 24% en el pb, el 14% en el tl, el 11% en el cu y el 9% en el cd.  en 1999, tras las labores de retirada de lodos, relimpieza y encalado, las cantidades totales descienden con respecto a 1998, fundamentalmente en los suelos m\u00e1s contaminados, aunque la superficie afectada por encima de los niveles cr\u00edticos no desciende significativamente en el caso del as, pb, zn, tl y cu. Las formas solubles y biodisponibles disminuyen claramente un a\u00f1o despu\u00e9s del accidente indicando que, con el tiempo, van pasando a formas menos m\u00f3viles.  en experiencias realizadas para comprobar la efectividad del encalado sobre los suelos, se observa que la adici\u00f3n de carbonato c\u00e1lcico provoca la precipitaci\u00f3n de fe, al y sulfatos sobre la superficie de los granos de calcita. Los sulfatos precipitan en gran medida en forma de yeso, y el fe y al en morfolog\u00edas m\u00e1s o menos amorfas junto con las que se asocian cantidades variables de los elementos contaminantes implicados. En las condiciones de equilibrio alcanzadas (ph=6,2) los elementos considerados como m\u00e1s solubles son el zn, cd y tl, mientras que los m\u00e1s insolubles son el as, pb, sb y bi.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Contaminaci\u00f3n de suelos por el vertido de una mina de pirita (aznalc\u00f3llar, espa\u00f1a)<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Contaminaci\u00f3n de suelos por el vertido de una mina de pirita (aznalc\u00f3llar, espa\u00f1a) <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Francisco Jos\u00e9 Mart\u00edn Peinado <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 31\/01\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Mar\u00eda no Simon Torres<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Aguilar ru\u00edz <\/li>\n<li>roque Ortiz silla (vocal)<\/li>\n<li>felipe Mac\u00edas v\u00e1zquez (vocal)<\/li>\n<li>peter Bullock (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Francisco Jos\u00e9 Mart\u00edn Peinado El 25 de abril de 1998 la rotura de uno de los diques [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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 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