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RESEARCH PRODUCT

Experimental study of the anaerobic urban wastewater treatment in a submerged hollow-fibre membrane bioreactor at pilot scale

Juan Bautista GiménezMaría Victoria RuanoJ. RibesFreddy DuránÁNgel RoblesM. N. GattiJosé FerrerL. CarreteroAurora Seco

subject

Hollow-fibre membraneINGENIERIA HIDRAULICABiogasUltrafiltrationEffluentsPilot ProjectsWastewater treatmentWastewaterWaste Disposal FluidIndustrial effluentPerformance assessmentBioreactorsAnaerobiosisWaste Management and DisposalHollow fiber membranePriority journalPilot plantsVolatile fatty acidWaste water managementChemistryChemical oxygen demandUrban wastewaterMethanationMembraneGeneral MedicinePulp and paper industryWaste treatmentHollow fiber reactorWastewaterIndustrial membranesSeparation techniqueMethaneBioconversionEnvironmental EngineeringUltrafiltrationBioreactorBioengineeringArticleWater PurificationBiogasBioreactorMicrofiltrationCitiesEffluentBiological water treatmentTECNOLOGIA DEL MEDIO AMBIENTESubmerged anaerobic membrane bioreactorBiological Oxygen Demand AnalysisMembranesExperimental studyRenewable Energy Sustainability and the EnvironmentEnvironmental engineeringUrban areaMembranes ArtificialBiogas productionNonhumanAnaerobic digestionPilot plantChemical oxygen demandAnoxic conditions

description

The aim of this study was to assess the effect of several operational variables on both biological and separation process performance in a submerged anaerobic membrane bioreactor pilot plant that treats urban wastewater. The pilot plant is equipped with two industrial hollow-fibre ultrafiltration membrane modules (PURON¿ Koch Membrane Systems, 30m 2 of filtration surface each). It was operated under mesophilic conditions (at 33°C), 70days of SRT, and variable HRT ranging from 20 to 6h. The effects of the influent COD/SO 4-S ratio (ranging from 2 to 12) and the MLTS concentration (ranging from 6 to 22gL -1) were also analysed. The main performance results were about 87% of COD removal, effluent VFA below 20mgL -1 and biogas methane concentrations over 55% v/v. Methane yield was strongly affected by the influent COD/SO 4-S ratio. No irreversible fouling problems were detected, even for MLTS concentrations above 22gL -1. © 2011 Elsevier Ltd.

yearjournalcountryeditionlanguage
2011-10-01
10.13039/501100004837http://hdl.handle.net/10251/46630