Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II)
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Universidad de Antioquia
2022
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| author | Candelaria Tejada-Tovar |
| author_facet | Candelaria Tejada-Tovar |
| contents | Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II) Candelaria Tejada-Tovar Ángel Villabona-Ortíz Walter Cortina-Góngora Betty Díaz-Navarro Rodrigo Ortega-Toro Ingeniería modelling thermodynamics Waste treatment agricultural wastes The presence of heavy metals in aqueous media represents a severe threat to ecosystems because they are non-biodegradable, toxic, and carcinogenic. In the present work, the utilization of agro-industrial residues from obtaining plantain starch for removing Ni (II) was studied, establishing the effect of temperature, adsorption dose, and initial concentration. The kinetics, equilibrium, and thermodynamic parameters that determine the process were studied. For this purpose, tests were carried out in a batch system maintaining constant stirring (200 rpm), pH (2), and solution volume (100 mL). The remaining metal concentration was determined by atomic adsorption at 237 nm. It was found that the best adsorption conditions were given at 55 ºC, 0.6775 g, and 368 mg/L obtaining a maximum adsorption capacity of 47.57 mg/g corresponding to a removal of 87%. The kinetic model that best fits the experimental data was a pseudo-second-order model, and the isotherm that describes the process is Langmuir and Freundlich, so the adsorption is given by chemisorption and multilayers. The thermodynamic parameters determined suggest that the process is favourable, not spontaneous, endothermic, and irreversible under the studied conditions. The results show that the residual biomass from the obtaining of plantain starch is a good precursor for absorbing Ni (II) in an aqueous solution. 2022 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43070264013 https://www.redalyc.org/journal/430/43070264013/ https://www.redalyc.org/journal/430/43070264013/html/ https://www.redalyc.org/journal/430/43070264013/43070264013.epub https://www.redalyc.org/journal/430/43070264013/movil 10.17533/udea.redin.20210428 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.103 |
| format | Artículo científico |
| id | redalyc_43070264013 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad de Antioquia |
| spellingShingle | Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II) Candelaria Tejada-Tovar Ingeniería modelling thermodynamics Waste treatment agricultural wastes Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II) Candelaria Tejada-Tovar Ángel Villabona-Ortíz Walter Cortina-Góngora Betty Díaz-Navarro Rodrigo Ortega-Toro Ingeniería modelling thermodynamics Waste treatment agricultural wastes The presence of heavy metals in aqueous media represents a severe threat to ecosystems because they are non-biodegradable, toxic, and carcinogenic. In the present work, the utilization of agro-industrial residues from obtaining plantain starch for removing Ni (II) was studied, establishing the effect of temperature, adsorption dose, and initial concentration. The kinetics, equilibrium, and thermodynamic parameters that determine the process were studied. For this purpose, tests were carried out in a batch system maintaining constant stirring (200 rpm), pH (2), and solution volume (100 mL). The remaining metal concentration was determined by atomic adsorption at 237 nm. It was found that the best adsorption conditions were given at 55 ºC, 0.6775 g, and 368 mg/L obtaining a maximum adsorption capacity of 47.57 mg/g corresponding to a removal of 87%. The kinetic model that best fits the experimental data was a pseudo-second-order model, and the isotherm that describes the process is Langmuir and Freundlich, so the adsorption is given by chemisorption and multilayers. The thermodynamic parameters determined suggest that the process is favourable, not spontaneous, endothermic, and irreversible under the studied conditions. The results show that the residual biomass from the obtaining of plantain starch is a good precursor for absorbing Ni (II) in an aqueous solution. 2022 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43070264013 https://www.redalyc.org/journal/430/43070264013/ https://www.redalyc.org/journal/430/43070264013/html/ https://www.redalyc.org/journal/430/43070264013/43070264013.epub https://www.redalyc.org/journal/430/43070264013/movil 10.17533/udea.redin.20210428 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.103 |
| title | Use of agro-industrial residues of plantain (Musa paradisiaca) in the adsorption of Ni (II) |
| topic | Ingeniería modelling thermodynamics Waste treatment agricultural wastes |
| url | https://www.redalyc.org/articulo.oa?id=43070264013 https://www.redalyc.org/journal/430/43070264013/ https://www.redalyc.org/journal/430/43070264013/html/ https://www.redalyc.org/journal/430/43070264013/43070264013.epub https://www.redalyc.org/journal/430/43070264013/movil |