Remoción de colorantes en aguas residuales de la industria textil por medio de material bioadsorbente proveniente de concha de ostras

In the present work, the evaluation of a material from oyster shells called coral rock was carried out: (Coquina), as a bioadsorbent for the removal of dye in wastewater from the textile industry. Said material was taken to different particle diameters (300 um and less than 300 um) and subsequently thermally modified using drying at 120°C and calcination at temperatures between 200°C and 800°C, to later be analyzed through different characterization techniques. To evaluate the removal capacity, as well as the adsorption kinetics of the bioadsorbent, mountings were made in the laboratory using the brilliant green dye. For the above, dye concentrations of 25, 50 and 75 mg/L, pH between 2 and 12 and doses of bioadsorbent material between 0.2 and 0.6 g/L, with constant agitation, were evaluated. Aliquots were taken from each experiment at different time intervals to which absorbance measurement was performed at a wavelength of 640 nm for the subsequent determination of the dye concentration at each instant of time and determination of the percentage and capacity of removal. Subsequently, a sweep was carried out through various types of kinetic models in order to select the one that presented a better fit to the experimental results, the Pseudo second order model being selected. Finally, the coquina rock was selected as the best material at a temperature of 120ºC and with a diameter greater than 300 um, with which a removal percentage of 90% was obtained in a given time between 15 and 20 minutes at pH 7. The above allows to conclude that coquina rock is a viable and easily accessible bioadsorbent material for dye removal in textile wastewater.

• Autores: Coronado Herrera, Carolanne; Rhenals Navarro, Jean Carlos
• Tipo de recurso: Trabajo de grado de pregrado
• Fecha de publicación: 2022
• Institución: Corporación Universidad de la Costa
• Repositorio: REDICUC - Repositorio CUC
• Idioma: spa
• OAI Identifier: oai:repositorio.cuc.edu.co:11323/9826
• Acceso en línea: https://hdl.handle.net/11323/9826; https://repositorio.cuc.edu.co/
• Palabra clave: Bioadsorbente; Colorante; Conchas de ostras; Roca coquina; Remoción; Bioadsorbent; Colorant; Oyster shells; Coquina rock; Removal
• Rights: openAccess
• License: Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0)