Advanced oxidation process–biological system for wastewater containing a recalcitrant pollutant

Oller, I., Malato, S., Sánchez-Pérez , J. A., Maldonado, M. I., Gernjak, W. and Pérez-Estrada, L. A. (2007) Advanced oxidation process–biological system for wastewater containing a recalcitrant pollutant. Water Science and Technology, 55 12: 229-235.


Author Oller, I.
Malato, S.
Sánchez-Pérez , J. A.
Maldonado, M. I.
Gernjak, W.
Pérez-Estrada, L. A.
Title Advanced oxidation process–biological system for wastewater containing a recalcitrant pollutant
Journal name Water Science and Technology   Check publisher's open access policy
ISSN 0273-1223
1996-9732
Publication date 2007
Year available 2007
Sub-type Article (original research)
DOI 10.2166/wst.2007.411
Volume 55
Issue 12
Start page 229
End page 235
Total pages 7
Place of publication London, U.K.
Publisher IWA Publishing/Portland Press
Language eng
Subject 190409 Musicology and Ethnomusicology
Abstract Two advanced oxidation processes (AOPs), ozonation and photo-Fenton, combined with a pilot aerobic biological reactor at field scale were employed for the treatment of industrial non-biodegradable saline wastewater (TOC around 200 mg L-1) containing a biorecalcitrant compound, a-methylphenylglycine (MPG), at a concentration of 500 mg L-1. Ozonation experiments were performed in a 50-L reactor with constant inlet ozone of 21.9 g m-3. Solar photo-Fenton tests were carried out in a 75-L pilot plant made up of four compound parabolic collector (CPC) units. The catalyst concentration employed in this system was 20 mg L-1 of Fe2 + and the H2O2 concentration was kept in the range of 200–500 mg L-1. Complete degradation of MPG was attained after 1,020 min of ozone treatment, while only 195 min were required for photo-Fenton. Samples from different stages of both AOPs were taken for Zahn–Wellens biocompatibility tests. Biodegradability enhancement of the industrial saline wastewater was confirmed (>70% biodegradability). Biodegradable compounds generated during the preliminary oxidative processes were biologically mineralised in a 170-L aerobic immobilised biomass reactor (IBR). The global efficiency of both AOP/biological combined systems was 90% removal of an initial TOC of over 500 mg L-1
Keyword Biodegradability
Immobilised biomass reactor
A-methylphenylglycine
Ozonation
Photo-Fenton
Immobilised biomass reactor
Photo-Fenton
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
 
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