Resumo

ROJAS-MORALES, Jorge Luis; GUTIERREZ-GONZALEZ, Edixon Cristóbal  e  COLINA-ANDRADE, Gilberto de Jesús. Obtaining and Characterization of Activated Carbon Obtained Sludge Treatment Plant Wastewater from a Poultry Industry. Ing. invest. y tecnol. [online]. 2016, vol.17, n.4, pp.453-462. ISSN 2594-0732.

The adsorption capacity of activated carbons, obtained from poultry slaughterhouse sludge was evaluated. The precursor was activated with H3PO4 10, 20, 30 and 35% in a 1: 1 ratio and pyrolyzed at 450 °C for 2h in N2 atmosphere at a flow of 50 mL/min, obtaining the C10, C20, C30 and C35 carbons. The DARCOG60 was used as referential activated carbon. The adsorptive capacity of activated carbons obtained was evaluated, using the technique of methylene blue index (AM). The best adsorbent was characterized in terms of moisture content, ash content, bulk density and pH. Elemental composition (CHNO), infrared spectrophotometry FTIR and SEM scanning electron microscopy was determined. The C35 got higher dye adsorption (88.44% removal and 43.48 mg AM /g of C35). The DARG60 presented a 86.43% removal of AM. The carbon content in coal obtained poultry increase over the precursor slurry. The hydrogen content decreased significantly (sludge > carbon). The SEM photomicrographs, showed the appearance of a porous outer structure unlike the precursor carbon. FTIR reported the occurrence of several asymmetric carbon bands corresponding to different functional groups on their surfaces, evidencing an aromatic structure besides OH groups.

Palavras-chave : activated carbon; sludge; methylene blue; spectrophotometry; photomicrographs.