Christine MOUSTY - Département de Chimie

CYCLE DE CONFÉRENCES DE CHIMIE
Avec le concours de : Manufacture Française des Pneumatiques MICHELIN
Ecole Nationale Supérieure de Chimie de Clermont-Ferrand
Institut de Chimie de Clermont-Ferrand (ICCF UMR 6296)
U.F.R. S.T. Département de Chimie
Jeudi 5 Février 2015 à 16 h
Amphi Rémy (Site des Cézeaux)
Wenbo DONG
Professeur
Department of Environmental Science & Engineering
Fudan University, Shanghai, China
ADVANCED OXIDATION PROCESS FOR ELIMINATION OF
PHARMACEUTICALS
Various pharmaceuticals remains ubiquitous in aquatic environments, such as ground
water, surface water, sewage treatment plants and sediments due to their large consumption in
the world, resistance to biological degradation, and relatively poor removal efficiency by
conventional treatment technologies. Advanced oxidation process has been considered as
promising device for the elimination of pharmaceuticals. Among varied AOP methods, sulfatebased method has gained increasing attention. In this presentation, persulfate was activated to
produce sulfate radical by heating, Fe(II), and zerovalent iron, respectively. The degradation of
chloramphenicol (CAP), a typical antibiotic, was investigated in three systems under different
conditions. Temperature, sodium persulfate dosage, pH value, the presence of chelating agents,
HA and various anions on the degradation efficiency were discussed. As another important AOP
method, photocatalytical technology with UV-TiO2 has been applied in the degradation of different
kinds of pollutants. To develop an energy-saving pathway to degrade the pharmaceuticals, a Bibased photocatalyst, BiOClxIy was synthesised via precipitation methods in ethylene glycol (EG)water (H2O) and applied in the photocatalytic degradation of two pharmaceutical intermediates
under simulated and real solar irradiation. The result showed that the ratio of EG/H 2O for the
media where the catalyst was synthesized and the combination of a certain ratio of BiOCl and BiOI
were important factors affecting the catalytic activities. The optimal photocatalyst removed almost
100% of hydroxyphenylacetic acid (p-HPA) and 80% of acetaminophen (ACTP) under solar light
for 3 h, while O2− and dissolved oxygen play predominant roles in photocatalytic reactions.
Coordinatrices : Katia GUERIN,  33 473 407 567 courriel : [email protected]
Pascale HUSSON  33 473 407 193 courriel : [email protected]
Institut de Chimie de Clermont-Ferrand (ICCF-UMR 6296)
Université Blaise Pascal, 24, avenue des Landais, BP 80026 63171 AUBIERE cedex-France