Ulster University Logo

Urban wastewater disinfection for agricultural reuse: effect of solar driven AOPs in the inactivation of a multidrug resistant E. coli strain

Ferro, Giovanna, Fiorentino, Antonino, Alferez, María Castro, Polo-López, M. Inmaculada, Rizzo, Luigi and Fernandez-Ibanez, Pilar (2014) Urban wastewater disinfection for agricultural reuse: effect of solar driven AOPs in the inactivation of a multidrug resistant E. coli strain. Applied Catalysis B: Environmental, 178 . pp. 65-73. [Journal article]

Full text not available from this repository.

URL: http://dx.doi.org/10.1016/j.apcatb.2014.10.043

DOI: doi:10.1016/j.apcatb.2014.10.043

Abstract

The occurrenceofantibioticsinurbanwastewatertreatmentplants(UWTPs)mayresultinthedevel-opment ofantibioticresistanceandsubsequentlyinthereleaseofmultidrugresistantbacteria(MDR)and genesintotheeffluent.ConventionaldisinfectionprocessesareonlypartiallyeffectiveincontrollingARB spread,soadvancedoxidationprocesses(AOPs)havebeeninvestigatedasalternativeoptioninthiswork. Inparticular,theaimofthisworkwastocomparativelyassesstheefficiencyofsolardisinfectionand solardrivenAOPs(namelyH2O2/sunlight, TiO2/sunlight, H2O2/TiO2/sunlight, naturalphoto-Fenton)for theinactivationofamultidrug(namelyampicillin,ciprofloxacinandtetracycline)resistant E. colistrain isolatedfromtheeffluentofthebiologicalprocessofanUWTP.DifferentconcentrationsofH2O2(0.588–1.470–2.205 mM),TiO2 (50–100mgL−1),H2O2/TiO2 (0.147mM/50mgL−1, 0.588mM/100mgL−1)and Fe2+/H2O2 (0.090/0.294, 0.179/0.588,0.358/1.176mM)wereevaluatedatpilot-scale(incompoundparabolic collectorreactor)inrealbiologicallytreatedwastewater.Allinvestigatedprocessesresultedina completeinactivation(5-logdecrease)ofbacteriauntildetectionlimit,butthebestdisinfectioneffi-ciency intermsoftreatmenttime(20mintoreachthedetectionlimit)andrequiredenergy(0.98kJL−1)was observedforphoto-FentonatpH4(Fe2+/H2O2:0.090/0.294 mM).Antimicrobialsusceptibilitywastested byKirby-Bauerdiskdiffusionmethod.Ampicillinandciprofloxacin(towhichtheselectedstrainis resistant),cefuroximeandnitrofurantoinwerechosenastestedantibiotics.Noneoftheinvestigatedprocesses affectedantibioticresistanceofsurvivedcolonies.

Item Type:Journal article
Keywords:Antibiotic resistant bacteria; Photocatalysis; Solar disinfection; Urban wastewater; Wastewater reuse.
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:36783
Deposited By: Dr Pilar Fernandez-Ibanez
Deposited On:15 Feb 2017 13:42
Last Modified:17 Oct 2017 16:27

Repository Staff Only: item control page