PuSH - Publikationsserver des Helmholtz Zentrums München

Export: TXT Text RIS Endnote (RIS) BIB BibTeX
Li, K.* ; Yediler, A. ; Yang, M.* ; Schulte-Hostede, S. ; Wong, M.H.*

Ozonation of oxytetracycline and toxicological assessment of its oxidation by-products.

Chemosphere 72, 473-478 (2008)
DOI
Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
Antibiotic formulation effluents are well known for their difficult elimination by traditional bio-treatment methods and their important contribution to environmental pollution due to its fluctuating and recalcitrant nature. In the present study the effect of ozonation on the degradation of oxytetracycline (OTC) aqueous solution (100mgl(-1)) at different pH values (3, 7 and 11) was investigated. Ozone (11mgl(-1) corresponds the concentration of ozone in gas phase) was chosen considering its rapid reaction and decomposition rate. The concentration of oxytetracycline, chemical oxygen demand (COD), biochemical oxygen demand (BOD) and BOD(5)/COD ratio were the parameters to evaluate the efficiency of the ozonation process. In addition, the toxic potential of the OTC degradation was investigated by the bioluminescence test using the LUMIStox 300 instrument and results were expressed as the percentage inhibition of the luminescence of the marine bacteria Vibrio fischeri. The results demonstrate that ozonation as a partial step of a combined treatment concept is a potential technique for biodegradability enhancement of effluents from pharmaceutical industries containing high concentration of oxytetracycline provided that the appropriate ozonation period is selected. At pH 11 and after 60min of ozonation of oxytetracycline aqueous solutions (100 and 200mgl(-1)) the BOD(5)/COD ratios were 0.69 and 0.52, respectively. It was also shown that COD removal rates increase with increasing pH as a consequence of enhanced ozone decomposition rates at elevated pH values. The results of bioluminescence data indicate that first by-products after partial ozonation (5-30min) of OTC were more toxic than the parent compound.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
2.739
1.880
71
145
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Oxytetracycline; Ozonation; Biodegradability; COD; Bioluminescence test; Vibrio fischeri
Sprache englisch
Veröffentlichungsjahr 2008
HGF-Berichtsjahr 2008
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Zeitschrift Chemosphere
Quellenangaben Band: 72, Heft: 3, Seiten: 473-478 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Kidlington, Oxford
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)
PSP-Element(e) G-505100-006
DOI 10.1016/j.chemosphere.2008.02.008
Scopus ID 43649089896
Erfassungsdatum 2008-06-23
[➜Korrektur melden]