Adsorción de plomo sobre carbón activado obtenido de residuos de frutos de Crescentia Cujete.

Abstract

The "Adsorption of lead on activated carbon obtained from fruits of Crescentia Cujete" aimed to study the removal of lead by adsorption with activated carbon from residues of Crescentia Cujet, for which activated carbon was obtained by the carbonization method. The activation was carried out by physical and chemical methods in an artisanal way, and the lead removal capacity was determined. The analysis of the raw material obtained from the enclosed state Gramalote was carried out, in which an analysis of ash, humidity; The characterization of the two activated carbons obtained was also carried out, evaluating parameters such as the iodine number, apparent density, process performance and the percentage of lead removal. To find out the porous structure present in the two activated carbons obtained, scanning electron microscopy was used. The lead removal percentage was determined by one batch test for the two coals obtained. The results of the activated carbons obtained were compared according to the American Society of Testing Materials (ASTM) standards, where the% moisture, ash, apparent density, ph, of the two carbons were compared and the result was that they were They are in the range or close to the range established by the ASTM standard. The results were also compared with activated carbon from the Ecuadorian company Erafi, in which it can be said that chemically activated carbon is the one that is closest to the ranges presented by this company. It can be concluded that chemically activated carbon was the one that could remove the highest amount of lead, presenting a percentage of 47.71%.