Solar photo-fenton as finishing step for biological treatment of a pharmaceutical wastewater

Sirtori, C., Zapata, A., Oller, I., Gernjak, W., Aguera, A. and Malato, S. (2009) Solar photo-fenton as finishing step for biological treatment of a pharmaceutical wastewater. Environmental Science & Technology, 43 4: 1185-1191. doi:10.1021/es802550y


Author Sirtori, C.
Zapata, A.
Oller, I.
Gernjak, W.
Aguera, A.
Malato, S.
Title Solar photo-fenton as finishing step for biological treatment of a pharmaceutical wastewater
Journal name Environmental Science & Technology   Check publisher's open access policy
ISSN 0013-936X
1520-5851
Publication date 2009-02
Sub-type Article (original research)
DOI 10.1021/es802550y
Volume 43
Issue 4
Start page 1185
End page 1191
Total pages 7
Place of publication Washington DC, United States
Publisher American Chemical Society
Collection year 2010
Language eng
Subject 05 Environmental Sciences
Abstract Remediation of pharmaceutical wastewater, containing nalidixic acid (NXA; 38 mg/L), a quinolone antibacterial agent commonly used in human and veterinary medicine, and characterized as having mainly 725 mg/L dissolved organic carbon (DOC), 3400 mg/L chemical oxygen demand, and around 4 g/L NaCl, was studied. A prior biodegradability study (Zahn−Wellens test) had demonstrated that the matrix was biodegradable after a rather long biomass adaptation period. After 4 days of treatment in an immobilized biomass reactor (IBR), 96% of the original DOC was removed by the biological treatment; however, more than 50% of NXA was adsorbed on the biomass. As development of chronic toxicity in the IBR is possible after long exposure to NXA, adsorption and biomass stability during continuous exposure to NXA were studied in different cycles for one month. After the biotreatment, the effluent was treated by solar photo-Fenton. Total degradation of NXA and reduction in toxicity were observed. The intermediates formed during degradation by biotreatment and subsequent photo-Fenton were studied by liquid chromatography−time-of-flight mass spectrometry.
Keyword Flight Mass-spectrometry
Nalidixic-acid
Advanced Oxidation
Treatment Plants
Risk-assessment
Antibiotics
Biodegradability
wastewaters
Environment
Removal
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 37 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 40 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 03 Sep 2009, 08:46:04 EST by Mr Andrew Martlew on behalf of Advanced Water Management Centre