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Solar photocatalytic disinfection of agricultural pathogenic fungi (Curvularia sp.) in real urban wastewater

dc.creatorAguas Y.spa
dc.creatorHincapie M.spa
dc.creatorFernández-Ibáñez P.spa
dc.creatorPolo-López M.I.spa
dc.date.accessioned2017-12-19T19:36:48Z
dc.date.available2017-12-19T19:36:48Z
dc.date.created2017
dc.identifier.issn489697
dc.identifier.urihttp://hdl.handle.net/11407/4329
dc.description.abstractThe interest in developing alternative water disinfection methods that increase the access to irrigation water free of pathogens for agricultural purposes is increasing in the last decades. Advanced Oxidation Processes (AOPs) have been demonstrated to be very efficient for the abatement of several kind of pathogens in contaminated water. The purpose of the current study was to evaluate and compare the capability of several solar AOPs for the inactivation of resistant spores of agricultural fungi. Solar photoassisted H2O2, solar photo-Fenton at acid and near-neutral pH, and solar heterogeneous photocatalysis using TiO2, with and without H2O2, have been studied for the inactivation of spores of Curvularia sp., a phytopathogenic fungi worldwide found in soils and crops. Different concentrations of reagents and catalysts were evaluated at bench scale (solar vessel reactors, 200 mL) and at pilot plant scale (solar Compound Parabolic Collector-CPC reactor, 20 L) under natural solar radiation using distilled water (DW) and real secondary effluents (SE) from a municipal wastewater treatment plant. Inactivation order of Curvularia sp. in distilled water was determined, i.e. TiO2/H2O2/sunlight (100/50 mg L− 1) > H2O2/sunlight (40 mg L− 1) > TiO2/sunlight (100 mg L− 1) > photo-Fenton with 5/10 mg L− 1 of Fe2 +/H2O2 at pH 3 and near-neutral pH. For the case of SE, at near neutral pH, the most efficient solar process was H2O2/Solar (60 mg L− 1); nevertheless, the best Curvularia sp. inactivation rate was obtained with photo-Fenton (10/20 mg L− 1 of Fe2 +/H2O2) requiring a previous water adicification to pH 3, within 300 and 210 min of solar treatment, respectively. These results show the efficiency of solar AOPs as a feasible option for the inactivation of resistant pathogens in water for crops irrigation, even in the presence of organic matter (average Dissolved Organic Carbon (DOC): 24 mg L− 1), and open a window for future wastewater reclamation and irrigation use. © 2017 Elsevier B.V.eng
dc.language.isoeng
dc.publisherElsevier B.V.spa
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85024391388&doi=10.1016%2fj.scitotenv.2017.07.085&partnerID=40&md5=6f3b8580eae2133efd76fb85e7c68ca3spa
dc.sourceScopusspa
dc.titleSolar photocatalytic disinfection of agricultural pathogenic fungi (Curvularia sp.) in real urban wastewaterspa
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.contributor.affiliationAguas, Y., Universidad de Sucre, School of Engineering, Cra 28 No 5-268, Sincelejo, Colombia, Universidad de Medellin, School of Engineering, Cra 87 No 30-65, Medellín, Colombiaspa
dc.contributor.affiliationHincapie, M.spa
dc.contributor.affiliationFernández-Ibáñez, P., Nanotechnology and Integrated BioEngineering Centre, School of Engineering, University of Ulster, Newtownabbey, Northern Ireland, United Kingdomspa
dc.contributor.affiliationPolo-López, M.I., Plataforma Solar de Almería–CIEMAT, Carretera Senés km 4, 04200 Tabernas, Almería, Spainspa
dc.identifier.doi10.1016/j.scitotenv.2017.07.085
dc.subject.keywordCurvularia sp.eng
dc.subject.keywordHydrogen peroxideeng
dc.subject.keywordPhoto-Fentoneng
dc.subject.keywordSunlighteng
dc.subject.keywordTitanium dioxideeng
dc.subject.keywordWastewater reuseeng
dc.subject.keywordAgricultureeng
dc.subject.keywordCarboneng
dc.subject.keywordCropseng
dc.subject.keywordDisinfectioneng
dc.subject.keywordFungieng
dc.subject.keywordHydrogen peroxideeng
dc.subject.keywordIron compoundseng
dc.subject.keywordIrrigationeng
dc.subject.keywordOrganic carboneng
dc.subject.keywordOxidationeng
dc.subject.keywordPilot plantseng
dc.subject.keywordSoilseng
dc.subject.keywordTitanium dioxideeng
dc.subject.keywordWastewater reclamationeng
dc.subject.keywordWastewater treatmenteng
dc.subject.keywordWater pollutioneng
dc.subject.keywordCompound parabolic collectoreng
dc.subject.keywordCurvularia speng
dc.subject.keywordHeterogeneous photocatalysiseng
dc.subject.keywordMunicipal wastewater treatment plantseng
dc.subject.keywordPhoto-Fentoneng
dc.subject.keywordPhotocatalytic disinfectionseng
dc.subject.keywordSunlighteng
dc.subject.keywordWastewater reuseeng
dc.subject.keywordEffluentseng
dc.subject.keywordCurvulariaeng
dc.subject.keywordFungieng
dc.publisher.facultyFacultad de Ingenieríasspa
dc.abstractThe interest in developing alternative water disinfection methods that increase the access to irrigation water free of pathogens for agricultural purposes is increasing in the last decades. Advanced Oxidation Processes (AOPs) have been demonstrated to be very efficient for the abatement of several kind of pathogens in contaminated water. The purpose of the current study was to evaluate and compare the capability of several solar AOPs for the inactivation of resistant spores of agricultural fungi. Solar photoassisted H2O2, solar photo-Fenton at acid and near-neutral pH, and solar heterogeneous photocatalysis using TiO2, with and without H2O2, have been studied for the inactivation of spores of Curvularia sp., a phytopathogenic fungi worldwide found in soils and crops. Different concentrations of reagents and catalysts were evaluated at bench scale (solar vessel reactors, 200 mL) and at pilot plant scale (solar Compound Parabolic Collector-CPC reactor, 20 L) under natural solar radiation using distilled water (DW) and real secondary effluents (SE) from a municipal wastewater treatment plant. Inactivation order of Curvularia sp. in distilled water was determined, i.e. TiO2/H2O2/sunlight (100/50 mg L− 1) > H2O2/sunlight (40 mg L− 1) > TiO2/sunlight (100 mg L− 1) > photo-Fenton with 5/10 mg L− 1 of Fe2 +/H2O2 at pH 3 and near-neutral pH. For the case of SE, at near neutral pH, the most efficient solar process was H2O2/Solar (60 mg L− 1); nevertheless, the best Curvularia sp. inactivation rate was obtained with photo-Fenton (10/20 mg L− 1 of Fe2 +/H2O2) requiring a previous water adicification to pH 3, within 300 and 210 min of solar treatment, respectively. These results show the efficiency of solar AOPs as a feasible option for the inactivation of resistant pathogens in water for crops irrigation, even in the presence of organic matter (average Dissolved Organic Carbon (DOC): 24 mg L− 1), and open a window for future wastewater reclamation and irrigation use. © 2017 Elsevier B.V.eng
dc.creator.affiliationUniversidad de Sucre, School of Engineering, Cra 28 No 5-268, Sincelejo, Colombiaspa
dc.creator.affiliationUniversidad de Medellin, School of Engineering, Cra 87 No 30-65, Medellín, Colombiaspa
dc.creator.affiliationNanotechnology and Integrated BioEngineering Centre, School of Engineering, University of Ulster, Newtownabbey, Northern Ireland, United Kingdomspa
dc.creator.affiliationPlataforma Solar de Almería–CIEMAT, Carretera Senés km 4, 04200 Tabernas, Almería, Spainspa
dc.relation.ispartofesScience of the Total Environmentspa
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dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.driverinfo:eu-repo/semantics/article
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.instnameinstname:Universidad de Medellínspa


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