Next Article in Journal
Identification of Key Factors Affecting the Trophic State of Four Tropical Small Water Bodies
Previous Article in Journal
Differences in the Effects of Storms on Dissolved Organic Carbon (DOC) in Boreal Lakes during an Early Summer Storm and an Autumn Storm
Previous Article in Special Issue
Evaluation of TiO2 and SnO Supported on Graphene Oxide (TiO2-GO and SnO-GO) Photocatalysts for Treatment of Hospital Wastewater
Open AccessArticle

Towards the Removal of Antibiotics Detected in Wastewaters in the POCTEFA Territory: Occurrence and TiO2 Photocatalytic Pilot-Scale Plant Performance

1
Water and Environmental Health Research Group, c/María de Luna 3, 50018 Zaragoza, Spain
2
Navarra de Infraestructuras Locales SA, av. Barañain 22, 31008 Pamplona, Spain
3
Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials (IPREM), Centre National de la Recherche Scientifique (CNRS), Universite de Pau et des Pays de l’Adour, CEDEX 9 Pau, France
4
Analytical Spectroscopy and Sensors Group Analytic Chemistry Department, Science Faculty, Environmental Science Institute, University of Zaragoza, 50009 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Water 2020, 12(5), 1453; https://doi.org/10.3390/w12051453
Received: 25 April 2020 / Revised: 12 May 2020 / Accepted: 15 May 2020 / Published: 20 May 2020
This research aims to assess the presence of four antibiotic compounds detected in the influent and effluent of wastewater treatment plants (WWTPs) in the POCTEFA territory (north of Spain and south of France) during the period of 2018–2019, and to relate the removal of antibiotic compounds with the processes used in the WWTPs. The performance of a photocatalytic TiO2/UV-VIS pilot-scale plant was then evaluated for the degradation of selected antibiotics previously detected in urban treated effluent. The main results reflect that azithromycin had the highest mass loadings (11.3 g/day per 1000 inhabitants) in the influent of one of the selected WWTPs. The results also show considerable differences in the extent of antibiotics removal in WWTPs ranging from 100% for sulfadiazine to practically 0% for trimethoprim. Finally, the photocatalytic TiO2/UV-VIS pilot-scale plant achieved the removal of the four antibiotics after 240 min of treatment from 78%–80% for trimethoprim and enrofloxacin, up to 100% for amoxicillin, sulfadiazine and azithromycin. The catalyst recovery via mechanical coagulation–flocculation–decantation was almost total. The Ti concentration in the effluent of the TiO2/UV-VIS pilot-scale plant was lower than 0.1% (w/w), and its release into the environment was subsequently minimized. View Full-Text
Keywords: antibiotics; wastewater; removal efficiency; photocatalysis; slurry reactor antibiotics; wastewater; removal efficiency; photocatalysis; slurry reactor
Show Figures

Figure 1

MDPI and ACS Style

Moles, S.; Mosteo, R.; Gómez, J.; Szpunar, J.; Gozzo, S.; Castillo, J.R.; Ormad, M.P. Towards the Removal of Antibiotics Detected in Wastewaters in the POCTEFA Territory: Occurrence and TiO2 Photocatalytic Pilot-Scale Plant Performance. Water 2020, 12, 1453.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop