Decomposition of Cyanide using Ozone and Iron Oxides

Decomposition of Cyanide using Ozone and Iron Oxides

Cyanidation has been for years the most used process for gold extraction; however, the resulting solutions affect the environment as they are toxic and complex. Some of the conventional processes for the elimination of cyanide is oxidation, however, this can be slow. Due to the above, this work focu...

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Autores principales: Garza Román, Marleth Roxana, Carrillo Pedroza, Francisco Raúl, Soria Aguilar , Ma. de Jesús, Picazo Rodriguez , Nallely Guadalupe
Formato: Online
Lenguaje:spa
Publicado: Universida de Sonora 2022
Acceso en línea:https://epistemus.unison.mx/index.php/epistemus/article/view/202
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spelling oai:http:--epistemus.unison.mx:article-2022023-06-14T01:03:57Z Decomposition of Cyanide using Ozone and Iron Oxides Descomposición de cianuro usando ozono y óxidos de hierro Garza Román, Marleth Roxana Carrillo Pedroza, Francisco Raúl Soria Aguilar , Ma. de Jesús Picazo Rodriguez , Nallely Guadalupe descomposition cyanide advanced oxidation processes iron oxides descomposición cianuro procesos de oxidación avanzada óxidos de hierro Cyanidation has been for years the most used process for gold extraction; however, the resulting solutions affect the environment as they are toxic and complex. Some of the conventional processes for the elimination of cyanide is oxidation, however, this can be slow. Due to the above, this work focuses on the elimination of cyanide with advanced catalytic oxidation processes such as ozone and iron oxides. The experimental tests were developed under controlled conditions at the laboratory level, using iron oxides as catalysts. The results showed that by adding 1 g / L of iron oxides, the initial concentration of cyanide (250 ppm) was reduced to 11.9 ppm in an average of 11 minutes, on the other hand, in the tests that did not use said oxides at this time there were 150 ppm of cyanide in the solution. La cianuración ha sido por años el proceso más empleado para la extracción de oro, sin embargo, las soluciones resultantes afectan al medio ambiente ya que son tóxicas y complejas. Algunos de los procesos convencionales para la eliminación de cianuro es la oxidación, no obstante, esta puede resultar lenta. Debido a lo anterior el presente trabajo se enfoca en la eliminación de cianuro con procesos de oxidación avanzada catalítica como lo son el ozono y los óxidos de hierro. Las pruebas experimentales se desarrollaron bajo condiciones controladas a nivel laboratorio, usando óxidos de hierro como catalizadores. Los resultados mostraron que al agregar 1 g/L de óxidos de hierro, la concentración inicial de cianuro (250 ppm) se lograron disminuir a 11.9 ppm en un promedio de 11 minutos, por otro lado, en las pruebas que no usaron dichos óxidos a este tiempo se tenían 150 ppm de cianuro en la solución. Universida de Sonora 2022-04-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Investigación application/pdf application/pdf text/xml https://epistemus.unison.mx/index.php/epistemus/article/view/202 10.36790/epistemus.v15i31.202 EPISTEMUS; Vol. 15 No. 31 (2021): Issue 31; 63-69 EPISTEMUS; Vol. 15 Núm. 31 (2021): Revista No. 31; 63-69 2007-8196 2007-4530 spa https://epistemus.unison.mx/index.php/epistemus/article/view/202/278 https://epistemus.unison.mx/index.php/epistemus/article/view/202/221 https://epistemus.unison.mx/index.php/epistemus/article/view/202/349 Derechos de autor 2022 EPISTEMUS https://creativecommons.org/licenses/by-nc-nd/4.0
institution Epistemus
collection OJS
language spa
format Online
author Garza Román, Marleth Roxana
Carrillo Pedroza, Francisco Raúl
Soria Aguilar , Ma. de Jesús
Picazo Rodriguez , Nallely Guadalupe
spellingShingle Garza Román, Marleth Roxana
Carrillo Pedroza, Francisco Raúl
Soria Aguilar , Ma. de Jesús
Picazo Rodriguez , Nallely Guadalupe
Decomposition of Cyanide using Ozone and Iron Oxides
author_facet Garza Román, Marleth Roxana
Carrillo Pedroza, Francisco Raúl
Soria Aguilar , Ma. de Jesús
Picazo Rodriguez , Nallely Guadalupe
author_sort Garza Román, Marleth Roxana
title Decomposition of Cyanide using Ozone and Iron Oxides
title_short Decomposition of Cyanide using Ozone and Iron Oxides
title_full Decomposition of Cyanide using Ozone and Iron Oxides
title_fullStr Decomposition of Cyanide using Ozone and Iron Oxides
title_full_unstemmed Decomposition of Cyanide using Ozone and Iron Oxides
title_sort decomposition of cyanide using ozone and iron oxides
description Cyanidation has been for years the most used process for gold extraction; however, the resulting solutions affect the environment as they are toxic and complex. Some of the conventional processes for the elimination of cyanide is oxidation, however, this can be slow. Due to the above, this work focuses on the elimination of cyanide with advanced catalytic oxidation processes such as ozone and iron oxides. The experimental tests were developed under controlled conditions at the laboratory level, using iron oxides as catalysts. The results showed that by adding 1 g / L of iron oxides, the initial concentration of cyanide (250 ppm) was reduced to 11.9 ppm in an average of 11 minutes, on the other hand, in the tests that did not use said oxides at this time there were 150 ppm of cyanide in the solution.
publisher Universida de Sonora
publishDate 2022
url https://epistemus.unison.mx/index.php/epistemus/article/view/202
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