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Main Author:	David Choque-Quispe
Format:	Artículo científico
Language:	en
Published:	Universidad de Antioquia 2022
Subjects:	Ingeniería solubility nopal mucilage Functional groups heavy metal removal native potato starch
Online Access:	https://www.redalyc.org/articulo.oa?id=43070264005 https://www.redalyc.org/journal/430/43070264005/ https://www.redalyc.org/journal/430/43070264005/html/ https://www.redalyc.org/journal/430/43070264005/43070264005.epub https://www.redalyc.org/journal/430/43070264005/movil
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Heavy metal removal by biopolymers-based formulations with native potato starch/nopal mucilage David Choque-Quispe Betsy S. Ramos-Pacheco Carlos A. Ligarda-Samanez Gloria I. Barboza-Palomino Aydeé Kari-Ferro Fredy Taipe-Pardo Yudith Choque-Quispe Ingeniería solubility nopal mucilage Functional groups heavy metal removal native potato starch The contamination of water bodies by heavy metals is a critical problem for human health and ecosystems, and it can bioaccumulate in organisms to toxic levels and even lead to the living being’s death. This research aimed to synthesize and characterize a biopolymer with the capacity to remove heavy metals in wastewater, elaborated from potato starch, glycerin, and nopal mucilage. Native potato starch of the Allcca sipas variety was extracted by conventional methods; the mucilage was extracted with ethanol. Four formulations of biopolymers were synthesized at 60 and 70 °C. The solubility, structural characteristics, and adsorption capacity of heavy metals were evaluated. Starch, mucilage, and biopolymers presented predominant functional groups as -OH, -C-O-, -NH-, -C-H-, -C-OH determined by FTIR, allowing to remove up to 50.18% of Al, 56.81% of As, 35.95% of Cr, 37.43% of Hg and 73.22% of Pb determined through an ICPE-OES, for a contact time of 100 minutes at pH 5.0, heavy metal removal and solubility were significantly influenced (p-value < 0.05) by the addition of starch and mucilage. The synthesized biopolymers present a high capacity for heavy metal removal in wastewater. 2022 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43070264005 https://www.redalyc.org/journal/430/43070264005/ https://www.redalyc.org/journal/430/43070264005/html/ https://www.redalyc.org/journal/430/43070264005/43070264005.epub https://www.redalyc.org/journal/430/43070264005/movil 10.17533/udea.redin.20201112 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

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