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Solar Advanced Oxidation Processes as disinfection tertiary treatments for real wastewater: Implications for water reclamation

Agulló-Barceló, M., Polo-López, M.I., Lucena, F., Jofre, J. and Fernandez Ibanez, P (2013) Solar Advanced Oxidation Processes as disinfection tertiary treatments for real wastewater: Implications for water reclamation. Applied Catalysis B: Environmental, 136-13 . pp. 341-350. [Journal article]

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URL: http://dx.doi.org/10.1016/j.apcatb.2013.01.069

DOI: 10.1016/j.apcatb.2013.01.069

Abstract

The aim of this study was to assess the disinfection of a real secondary effluent from a municipal wastewater treatment plant using added H2 O2 (20 and 50 mg L−1 ), TiO2 (100 mg L−1 ) and photo-Fenton under natural solar radiation in compound parabolic collector photo-reactors. For this purpose, the naturally occurring Escherichia coli, spores of sulphite-reducing clostridia (SRC), somatic coliphages (SOMCPH) and F-specific RNA bacteriophages (FRNA) were tested before and along the different solar treatments. Results for E. coli showed the different treatments efficiency rank: photo-Fenton pH 3 > H2 O2 (20 mg L−1 )/solar > TiO2 /solar > solar photo-inactivation. On the other hand, for viral indicators the rank- ingwas:photo-FentonpH3>TiO2/solar>H2O2 (20mgL−1)/solar>solarphoto-inactivation.SRCwasthe most resistant indicator microorganism in all the evaluated processes. For the first time these solar pro- cesses have been evaluated for naturally occurring conventional indicators such as E. coli and alternative indicators such as SOMCPH and FRNA as viral indicators or spores of SRC as protozoan indicators. Some of the tested solar photo-oxidation treatments have shown their capability to reduce E. coli concentrations to a suitable level for water reuse (according to different reclaimed water guidelines) within affordable treatment times.

Item Type:Journal article
Keywords:Solar disinfection AOP E. coli Bacteriophages Reclaimed water
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:37008
Deposited By: Dr Pilar Fernandez-Ibanez
Deposited On:13 Mar 2017 13:46
Last Modified:17 Oct 2017 16:27

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