Evaluación de la capacidad de adsorción de la corteza de naranja (Citrus sinensis), bagazo de caña de azucar (Saccharum officinarum) y borra de café (Coffea arabica) para la remoción del colorante azul brillante FCF

Abstract

In the development of the investigation there decided the behavior of adsorption of the blue brilliant colouring FCF disuelt in synthetic solutions using for it bark of orange (C.N), bagasse of sugar cane (B.C.Ñ) and flock of coffee (B.C), the evaluated variables were a time of contact, pH and size of particle, to a concentration of 100 ppm in a reactor batch with constant agitation and 1 g of adsorbent material. The content of the colouring quantified for spectrometry UV-Vis, obtaining removals of 62.9 % for B.C.Ñ, 95 % for C.N and 98.6 % for B.C to pH 2. With the obtained results a study was realized in column using B.C obtaining removals of 100 % for a time of 90 minutes, determining that the flock of coffee, as well as the bark of orange they are a new alternative for the removal of the blue brilliant colouring FCF, the repeatability of the measurements was verified so much of the curve of calibration as of the discontinuous tests finding percentages of precision of 99.74% and 95.51% respectively, which indicates us that there exists a high probability of obtaining similar results under the same conditions handled in this work.