Photocatalytic Remediation of Simulated Wastewater Contaminated with Tetracycline
DOI:
https://doi.org/10.18041/1794-4953/avances.1.5385Keywords:
Antibiotic, degradation, photocatalyst, reaction kynetics, TetracyclineAbstract
Tetracycline (TC) is an antibiotic widely used in human and veterinary medicine. Because of this and because its absorption is very poor in humans and animals, it is partially excreted into the environment, which is causing a growing problem. In order to present a solution to this problem, The study of kinetics was proposed by means of a laboratory-scale heterogeneous photocatalysis procedure, in which three CT solutions with different concentrations (30, 40 and 50 ppm) were prepared. The photocatalytic process consisted of the use of titanium dioxide as a photocatalyst at a concentration of 80 ppm, a pH of 4.5, a UV-VIS lamp of 60 W and an irradiation time of 40 minutes. From this reaction, kinetics were found to be order 1, so the 30 ppm solution showed better results in terms of degradation represented by the decrease in total organic carbon and by UV-VIS spectrophotometry.
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