Resumo de eventos cient??ficos
Ultrasonic TiO2 solar photodecomposition and biocarbon sorption processes to remove amoxicillin and cephalexin from binary systems
Registro en:
0000-0002-7737-3732
Autor
ORTIZ, N.
NICOLAU, T.S.
SOUZA, J.P.
SILVA, A.
IWA INTERNATIONAL CONFERENCE ON WATER RECLAMATION AND REUSE, 12th
Resumen
The cephalexin (CEPH) and amoxicillin (AMOX) antibiotics are the
most indicated in the medical prescriptions in Brazil, as the antibiotics used for
public health assistance and also for veterinary medicine. Nowadays Brazil is a
higher protein animal producer in the world. After the metabolization, the
antibiotics discharge in the sewage system and manure composition on rural
areas; act as secondary pollution sources for surface water resources. The
integrated processes applying the ultrasonic source before the solar
photodecomposition and biosorption showed the maximum removal percentage
of 91.47% for AMOX and 90.62% for CEPH. Considering the binary systems
with the 17:83 proportion percentages of AMOX and CEPH the removal
percentage was 89.15% and 97.90% respectively. The use of low-frequency
ultrasonic waves before the solar photodecomposition increased the TiO2
surface area and effectiveness and enhanced the removal efficiency for both
cephalexin and amoxicillin alone and in binary mixtures.