®®®® SIIA Público

Título del libro: One Century Of The Discovery Of Arsenicosis In Latin America (1914-2014): As 2014 - Proceedings Of The 5th International Congress On Arsenic In The Environment
Título del capítulo: Removal of arsenic from water for human consumption using a bioadsorbent obtained from orange wastes

Autores UNAM:
VICTOR HUGO GOMEZ ESPINOZA; SOFIA ESPERANZA GARRIDO HOYOS;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Adsorbents; Arsenic; Chemical contamination; Citrus fruits; Fourier transform infrared spectroscopy; X ray diffraction; Adsorption capacities; Composition analysis; Electronic microscopy; Human consumption; Low-cost adsorbents; Organic materials; Removal of arsenics; Solid adsorbents; Chemicals removal (water treatment)


Resumen:

Arsenic (As) is particularly known for its toxic effect, especially due to its carcinogenic action and significant effects on the skin. Food and water are the primary sources of ingesting As. The search for low-cost adsorbents that are easily available has led to investigations on organic materials. Thus, a bioadsorbent medium was developed to remove arsenic from water for human consumption, using orange albedo coated with Fe(III). The bioadsorbent medium had a surface area of 0.0216 m2 g-1 for the case of uncoated pectin and 0.0894 m2 g-1 for pectin coated with Fe(III) ions. The active groups present in the surface of the solid adsorbent were identified using infrared spectroscopy with Fourier Transform (FTIR). A composition analysis was conducted by X Ray Diffraction (XRD) and sweep electronic microscopy. Adsorption capacity obtained was 0.5498 g mg-1 min-1 for Fe(III)-coated pectin. © 2014 Taylor & Francis Group.


Entidades citadas de la UNAM: