Zinc adsorption capacity with humic acids extracted from bituminous coal

Expotecnología 2018 Research, Innovation and Development in Engineering

工业技术（总论）

Vásquez-Osorio, M.^1 ; Colpas-Castillo, F.^2 ; Castro-Suarez, J.R.^1 ; Vásquez-Osorio, Y.^3

Facultad de Diseno e Ingenieria, Fundación Tecnológica Antonio de Arévalo, Cartagena-Bolivar, Colombia^1

Facultad de Ciencias Exactas y Naturales, Departamento de Quimica, Universidad de Cartagena, Campus San Pablo, Cartagena-Bolivar, Colombia^2

Laboratorio V.O S.A.S, Cartagena-Bolivar, Colombia^3

关键词: Adsorption studies;    Aqueous media;    Aqueous oxidation;    Different particle sizes;    Living organisms;    Oxidizing agents;    Second phase;    Zinc adsorption;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/519/1/012036/pdf
DOI  :  10.1088/1757-899X/519/1/012036

学科分类：工业工程学

来源: IOP

【 摘 要 】

The contamination of bodies of water by heavy metals represents not only a danger for the environment, but also for human health; because they do not have the capacity to biodegrade, accumulate in the environment and in the tissues of the living organisms that inhabit it. In order to minimize these impacts, Zinc adsorption (Zn) was studied in aqueous solutions using humic acids extracted from bituminous coal from the Cerrejón mine (Guajira). This investigation was divided into two phases: The extraction of Humic Acids and the adsorption study. In the first phase, an aqueous oxidation of coal samples with different particle sizes (125mm, 250mm, and 425mm) was performed, with hydrogen peroxide as the oxidizing agent, at a concentration of 30%. In the second phase Zn2+ removal using Humic Acids extracted from bituminous coals was studied in aqueous media as a function of pH, highest percentage of adsorption obtained was of 66.8% at a pH of 5.