Banca de DEFESA: ELICARLA BARBOSA MOITINHO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ELICARLA BARBOSA MOITINHO
DATE: 27/07/2023
TIME: 15:00
LOCAL: meet.google.com/kys-krvv-ymz
TITLE:

Performance of an alternative adsorbent material in the retention process of the antibiotics Sulfamethoxazole (SMX) and Sulfadiazine (SDZ)

KEY WORDS:

Drug pollution, contamination, adsorption

PAGES: 60
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

Since technological advances and the consequent increase in the exploitation of natural resources, the natural environment has undergone significant adverse changes. Faced with this problem, the disposal of effluents, without proper treatment, becomes one of the most urgent environmental problems today. Among the various harmful substances, there are drugs, which even in low concentrations, can contaminate the aquatic environment. Therefore, it is necessary to develop effective technologies that prevent the disposal of drugs in the environment, avoiding its contamination, since the release of antibiotics can lead to the emergence of superbugs. Given the above, the objective of this work is to investigate the adsorption capacity of human hair to remove drugs in solution in order to minimize the impacts of these compounds on the environment. The sequential procedures adopted for the preparation of human hair samples were based on 6 stages: separation, washing, drying, grinding, sieving and maceration. For the retention tests, kinetic studies and adsorption isotherms were performed. The assay for studying the adsorption kinetics of the antibiotics Sulfamethoxazole (SMX) and Sulfadiazine (SDZ) by human hair was carried out, for each interval, in 3 closed glass vials containing 0.100 g of sample for 10 mL of drug solution with concentration 10-4 M, as well as, 1 vial containing only the drug solution (the analytical blank) was used. In order to obtain information on the economic viability of the adsorbent, the functionality in relation to the removal of pollutants and on the sorption capacity of SMZ and SDZ by human hair, the Adsorption Isotherm was analyzed in the chemical equilibrium time obtained in the kinetic tests. In the study of kinetics, the results showed an increase in adsorption capacity over time. It was concluded that human hair can be considered as a good candidate to be an adsorbent of SMX and SDZ antibiotics.

COMMITTEE MEMBERS:
Externo à Instituição - EBENÉZER DE FRANÇA SANTOS
Externo à Instituição - EDEVALDO MIGUEL ALVES
Presidente - MARCUS METRI CORREA