Evaluación de la efectividad del tratamiento de las aguas residuales de la Planta de Procesamiento de Minerales Auríferos del municipio Placetas
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Fecha
2017-06
Autores
González Rivero, Rosa Amalia
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Universidad Central “Marta Abreu” de Las Villas. Facultad de Química Farmacia. Departamento de Licenciatura en Química
Resumen
En el presente trabajo se determinó los contenidos de arsénico, níquel y cobalto como elementos mayoritarios presentes en las aguas residuales de la Planta de Procesamiento de Minerales Auríferos del municipio Placetas, con el fin de evaluar la efectividad del proceso de tratamiento de dichas aguas. Se verificó los métodos de determinación de níquel y cobalto por espectrometría de absorción atómica y de arsénico por espectrofotometría UV – Vis. En ambos procedimientos se evaluaron los parámetros de desempeño linealidad, precisión, veracidad, límite de detección y límite de cuantificación, comprobándose que son adecuados para las determinaciones de estos analitos. Finalmente se determinó los % de remoción de los elementos de interés en el tratamiento actual y se compara con los límites máximos permisibles establecidos por las normas cubanas, mostrando que la forma en la cual se están realizando los diferentes procesos no es adecuada para permitir su vertimiento.
In this work, the arsenic, nickel and cobalt contents were determined as the majority elements present in the wastewater of the Placetas Township Processing Plant in order to evaluate the effectiveness of the treatment process of these waters. The methods of determination of nickel and cobalt were verified by atomic absorption spectrometry and arsenic by UV – Vis spectrophotometry. In both procedures the performance parameters linearity, precision, accuracy, detection limit and limit of quantification were evaluated, being verified that they are suitable for the determinations of these analytes. Finally, the % removal of the elements of interest in the current treatment was determined and compared with the maximum permissible limits established by the Cuban standards, showing that the way in which the different processes are being carried out is not adequate to allow their dumpin
In this work, the arsenic, nickel and cobalt contents were determined as the majority elements present in the wastewater of the Placetas Township Processing Plant in order to evaluate the effectiveness of the treatment process of these waters. The methods of determination of nickel and cobalt were verified by atomic absorption spectrometry and arsenic by UV – Vis spectrophotometry. In both procedures the performance parameters linearity, precision, accuracy, detection limit and limit of quantification were evaluated, being verified that they are suitable for the determinations of these analytes. Finally, the % removal of the elements of interest in the current treatment was determined and compared with the maximum permissible limits established by the Cuban standards, showing that the way in which the different processes are being carried out is not adequate to allow their dumpin
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Palabras clave
Planta de Procesamiento de Minerales Auríferos, Placetas, Aguas Residuales, Níquel, Arsénico, Cobalto, Tratamiento de Aguas Residuales