Dataset of the efficiency of the ultraviolet light activation of persulfate ion for the degradation of cobalt cyanocomplexes in synthetic mining wastewater

In recent years, the extraction of gold has become important for the development of nations. However, mining wastewater represents an environmental problem due to its high content of free cyanide-based compounds and weak and strong cyanocomplexes for the use of sodium cyanide to obtain gold from minerals. The experimental data presented show the performance of the elimination of one of the strongest cyanocomplex that can appear in mining wastewater ð½CoðCNÞ6 3Þ by the ultraviolet C activation of persulfate (PS). The removal of total cobalt in solution was used as an indicator of the elimination of the cobalt cyanocomplexes that appear as transformation products from the degradation of ½CoðCNÞ63. The data evidence that strong cyanocomplexes can be eliminated from mining wastewater. The experimental runs were divided into two parts: as a first step, the influence of the UVC light was elucidated. Afterward, five initial concentrations of persulfate ion (0.1, 0.3, 0.5, 0.7 and 0.9 g/L of PS), two pH values (11 and 13) and two additional initial concentrations of contaminant (25 mg/L and 75 mg/L of ½CoðCNÞ63 ) were examined to find the optimalparameter where the highest Co removal is obtained.

• Autores: Castilla-Acevedo, Samir; Betancourt Buitrago, Luis Andrés; Machuca-Martínez, Fiderman; Machuca-Martínez, Fiderman
• Tipo de recurso: Article of journal
• Fecha de publicación: 2020
• Institución: Corporación Universidad de la Costa
• Repositorio: REDICUC - Repositorio CUC
• Idioma: eng
• OAI Identifier: oai:repositorio.cuc.edu.co:11323/6144
• Acceso en línea: https://hdl.handle.net/11323/6144; https://doi.org/10.1016/j.dib.2020.105346; https://repositorio.cuc.edu.co/
• Palabra clave: Advanced oxidation processes; UVC; Persulfate; Mining wastewater; Strong cyanocomplexes
• Rights: openAccess
• License: CC0 1.0 Universal