{"id":81584,"date":"1999-10-12T00:00:00","date_gmt":"1999-10-12T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/retencion-de-metales-pesados-sobre-un-material-arcilloso-de-base-paligoskita\/"},"modified":"1999-10-12T00:00:00","modified_gmt":"1999-10-12T00:00:00","slug":"retencion-de-metales-pesados-sobre-un-material-arcilloso-de-base-paligoskita","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/retencion-de-metales-pesados-sobre-un-material-arcilloso-de-base-paligoskita\/","title":{"rendered":"Retencion de metales pesados sobre un material arcilloso de base paligoskita"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Cristina Aisa Diaz <\/strong><\/h2>\n<p>El objetivo fundamental es conocer la capacidad para retener metales pesados en un material arcilloso- actualmente de desecho- contituido fundamentalmente por paligorskita, para ello, se ha determinado su composici\u00f3n quimica y mineral\u00f3gica (drx), asi como su textura porosa(isotermas de adsorci\u00f3n de gases, porosimetr\u00eda de intrusi\u00f3n de mercurio, analisis termicos, microscop\u00eda electronica de barrido, potencial zeta). Los procesos de retenci\u00f3n de metales(cd,cu,ni y zn) se estudian mediante las cin\u00e9ticas e isotermas (individuales y multielemento), seguidamente se hace un estudio de variables(agitaci\u00f3n, tiempo de mezclado, dosis de adsorbente, concentraci\u00f3n inicial de metal y presencia de diferentes aniones) y se aplica a un efuente industrial. Con las cin\u00e9ticas se conocen los tiempos necesarios para que los sistemas alcancen el equilibrio y con las isotermas los comportamientos diferenciados entre metales. Con las cin\u00e9ticas e isoteremas multielemento se comprueba la competencia de los metales por los centros superficiales del material. En la isotermas multielemento disminuye la cantidad de metal retenida y se modifica la forma respecto de la isoterma individual del metal. Finalmente, se investigan las formas quimicas de los metales retenidos(drx, meb, fluorescencia de rayosx x y exafs)-reteniendose el cu como atacamita y el zn como oxihidr\u00f3xido (posiblementes zincita)- y su inmovilizaci\u00f3n en el mineral arcilloso. Resultando que este material es un buen soporte para retener metales pesados, confin\u00e1ndolos, tras un tratamiento termico adecuado.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Retencion de metales pesados sobre un material arcilloso de base paligoskita<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Retencion de metales pesados sobre un material arcilloso de base paligoskita <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Cristina Aisa Diaz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 P\u00fablica de navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/12\/1999<\/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>Julian Garrido Segovia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel angel Ba\u00f1ares mu\u00f1oz <\/li>\n<li>cipriano Augustin vacas (vocal)<\/li>\n<li>Jos\u00e9 Pastor villegas (vocal)<\/li>\n<li>Francisco Arricibita bideagain (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Cristina Aisa Diaz El objetivo fundamental es conocer la capacidad para retener metales pesados en un material [&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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