Cinética de la reacción química del ozono y los complejos cianurados presentes en las aguas residuales provenientes de las empresas recuperadoras de oro
Fecha
2009
Autores
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Universidad de Guayaquil. Facultad de Ingeniería Química. Maestría en Ingeniería Ambiental
Resumen
La presente tesis identificó,como problema principal,que
durante el proceso de extracción de oro se emplea el cianuro de sodio; este método es utilizado por las empresas, grandes y pequeñas en nuestro país,debido a su alto rendimiento; sin embargo, involucra efectos ambientales negativos muy significativos,debido a la contaminación producida a los ríos de los sectores de Zaruma y Portovelo, donde se han reportado presencia de concentraciones del ion cianuro de 150 mg/l, sobrepasando el límite máximo permisible de 0,1 mg/l de descarga a un cuerpo receptor de agua dulce,estipulado en el Texto Unificado de Legislación Ambiental Secundaria
his thesis identified as the main problem, which during the gold extraction process used sodium cyanide, this method is used by companies large and small in our country due to its high performance, but involves very significant negative environmental effects due to pollution by the rivers of sectors Zaruma and Portovelo, which have reported the presence of cyanide ion concentrations of 150 mg / l, exceeding the maximum permissible limit of 0.1 mg / l for discharge into a receiving body of fresh water, provisions in the Unified Text of Secondary Environmental Legislation
his thesis identified as the main problem, which during the gold extraction process used sodium cyanide, this method is used by companies large and small in our country due to its high performance, but involves very significant negative environmental effects due to pollution by the rivers of sectors Zaruma and Portovelo, which have reported the presence of cyanide ion concentrations of 150 mg / l, exceeding the maximum permissible limit of 0.1 mg / l for discharge into a receiving body of fresh water, provisions in the Unified Text of Secondary Environmental Legislation
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Palabras clave
PROCESOS QUÍMICOS, CIANURO DE SODIO, OZONO