0000000000762873

AUTHOR

R. Pretel

showing 8 related works from this author

Filtration process cost in submerged anaerobic membrane bioreactors (AnMBRs) for urban wastewater treatment

2015

[EN] The objective of this study was to evaluate the effect of the main factors affecting the cost of the filtration process in submerged anaerobic membrane bioreactors (AnMBRs) for urban wastewater (UWW) treatment. Experimental data for CAPEX/OPEX calculations was obtained in an AnMBR system featuring industrial-scale hollow-fiber (HF) membranes. Results showed that operating at J(20) slightly higher than the critical flux results in minimum CAPEX/OPEX. The minimum filtration process cost ranged from Euro0.03 to Euro0.12 per m(3), mainly depending on SGD(m) (from 0.05 to 0.3 m(3)m(-2)h(-1)) and MLSS (from 5 to 25 gL-1). The optimal SGD(m) resulted in approx. 0.1 m(3)m(-2)h(-1).

Industrial-scale hollow-fiber membranesINGENIERIA HIDRAULICAGeneral Chemical EngineeringFiltration and Separation02 engineering and technology010501 environmental sciences01 natural scienceslaw.invention020401 chemical engineeringlawBioreactorUrban wastewater (UWW)0204 chemical engineeringFiltrationTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciencesChemistryProcess Chemistry and TechnologySubmerged anaerobic MBR (AnMBR)General ChemistryPulp and paper industryMembraneWastewaterProcess costingSewage treatmentBiochemical engineeringAnaerobic exerciseCAPEXOPEX
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Economic and environmental sustainability of submerged anaerobic MBR-based (AnMBR-based) technology as compared to aerobic-based technologies for mod…

2015

[EN] The objective of this study was to assess the economic and environmental sustainability of submerged anaerobic membrane bioreactors (AnMBRs) in comparison with aerobic-based technologies for moderate-/high-loaded urban wastewater (UWW) treatment. To this aim, a combined approach of steady-state performance modelling, life cycle analysis (LCA) and life cycle costing (LCC) was used, in which AnMBR (coupled with an aerobic-based post-treatment) was compared to aerobic membrane bioreactor (AeMBR) and conventional activated sludge (CAS). AnMBR with CAS-based post-treatment for nutrient removal was identified as a sustainable option for moderate-/high-loaded UWW treatment: low energy consump…

INGENIERIA HIDRAULICAEngineeringEnvironmental EngineeringCost-Benefit Analysis0208 environmental biotechnologySewageEnvironmental pollution02 engineering and technologyWastewater010501 environmental sciencesManagement Monitoring Policy and LawMembrane bioreactorGlobal Warming01 natural sciencesWater PurificationBioreactorsBioreactorAnaerobiosisWaste Management and DisposalTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciencesLife cycle costing (LCC)SewageLife cycle analysis (LCA)Steadystate performance modellingbusiness.industryUrbanizationSubmerged anaerobic MBR (AnMBR)Environmental engineeringMembranes ArtificialGeneral MedicineModels TheoreticalGlobal warming potential (GWP)Aerobiosis020801 environmental engineeringActivated sludgeWastewaterSewage treatmentEnvironmental PollutionbusinessAnaerobic exerciseJournal of Environmental Management
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A plant-wide energy model for wastewater treatment plants: application to anaerobic membrane bioreactor technology

2016

[EN] The aim of this study is to propose a detailed and comprehensive plant-wide model for assessing the energy demand of different wastewater treatment systems (beyond the traditional activated sludge) in both steady- and unsteady-state conditions. The proposed model makes it possible to calculate power and heat requirements (W and Q, respectively), and to recover both power and heat from methane and hydrogen capture. In order to account for the effect of biological processes on heat requirements, the model has been coupled to the extended version of the BNRM2 plant-wide mathematical model, which is implemented in DESSAS simulation software. Two case studies have been evaluated to assess t…

INGENIERIA HIDRAULICAEngineeringPlant-wide energy modelAnaerobic MBR020209 energyPortable water purificationWastewater treatment02 engineering and technologyWastewatercomputer.software_genreWaste Disposal FluidMethaneWater Purificationchemistry.chemical_compoundBioreactorsBNRM20202 electrical engineering electronic engineering information engineeringBioreactorEnvironmental ChemistryAnaerobiosisProcess engineeringWaste Management and DisposalTECNOLOGIA DEL MEDIO AMBIENTEWater Science and Technologybusiness.industryTemperatureEnvironmental engineeringMembranes ArtificialGeneral MedicineDESASSModels TheoreticalPower (physics)Simulation softwareActivated sludgeWastewaterchemistrySewage treatmentbusinessMethanecomputerEnvironmental Technology
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Economic and environmental sustainability of an AnMBR treating urban wastewater and organic fraction of municipal solid waste

2016

[EN] The objective of this study was to evaluate the economic and environmental sustainability of a sub- merged anaerobic membrane bioreactor (AnMBR) treating urban wastewater (UWW) and organic fraction of municipal solid waste (OFMSW) at ambient temperature in mild/hot climates. To this aim, power requirements, energy recovery from methane (biogas methane and methane dissolved in the effluent), consumption of reagents for membrane cleaning, and sludge handling (polyelectrolyte and energy consumption) and disposal (farmland, landfilling and incineration) were evaluated within different operating scenarios. Results showed that, for the operating conditions considered in this study, AnMBR tec…

INGENIERIA HIDRAULICAEnvironmental EngineeringMunicipal solid waste0208 environmental biotechnologySewageIncineration02 engineering and technologyWastewater010501 environmental sciencesManagement Monitoring Policy and LawSolid WasteOrganic fraction of municipal solid waste (OFMSW)Waste Disposal Fluid01 natural sciencesBioreactorsBiogasUrban wastewater (UWW)Ambient temperatureWaste Management and DisposalEffluentTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciencesEnergy recoverySewageWaste managementSulfatesbusiness.industryAnaerobic membrane bioreactor (AnMBR)Life cycle analysis (LCA)TemperatureEnvironmental engineeringMembranes ArtificialGeneral MedicineRefuse Disposal020801 environmental engineeringIncinerationEnergy consumptionWaste Disposal FacilitiesWastewaterBiofuelBiofuelsCosts and Cost AnalysisEnvironmental sciencebusinessMethane
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Design methodology for submerged anaerobic membrane bioreactors (AnMBR): A case study

2015

[EN] The main objective of this study is to propose guidelines for designing submerged anaerobic MBR (AnMBR) technology for municipal wastewater treatment. The design methodology was devised on the basis of simulation and experimental results from an AnMBR plant featuring industrial-scale hollow-fibre membranes. The proposed methodology aims to minimise both capital expenditure and operating expenses, and the key parameters considered were: hydraulic retention time, solids retention time, mixed liquor suspended solids concentration in the membrane tank, 20 C-standardised critical flux, specificgas demand per square metre of membrane area, and flow of sludge being recycled from the membrane …

CAPEX/OPEXINGENIERIA HIDRAULICAEngineeringIndustrial-scale hollow-fibre membranesWaste managementHydraulic retention timebusiness.industrySubmerged anaerobic MBR (AnMBR)Environmental engineeringFiltration and SeparationAnalytical ChemistrySquare meterMixed liquor suspended solidsMembraneWastewaterMunicipal wastewater treatmentDesign methodologyBioreactorAnaerobic reactorbusinessAnaerobic exerciseTECNOLOGIA DEL MEDIO AMBIENTESeparation and Purification Technology
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The operating cost of an anaerobic membrane bioreactor (AnMBR) treating sulphate-rich urban wastewater

2014

The objective of this study was to evaluate the operating cost of an anaerobic membrane bioreactor (AnMBR) treating sulphate-rich urban wastewater (UWW) at ambient temperature (ranging from 17 to 33 degrees C). To this aim, energy consumption, methane production, and sludge handling and recycling to land were evaluated. The results revealed that optimising specific gas demand with respect to permeate volume (SGDp) and sludge retention time (for given ambient temperature conditions) is essential to maximise energy savings (minimum energy demand: 0.07 kW h m(-3)). Moreover, low/moderate sludge productions were obtained (minimum value: 0.16 kg TSS kg(-1) CODRemoved), which further enhanced the…

INGENIERIA HIDRAULICAEnergy demandIndustrial-scale hollow-fibre membranesOperating costTreated waterAnaerobic membrane bioreactor (AnMBR)Environmental engineeringFiltration and SeparationAnaerobic membrane bioreactorEnergy consumptionMethaneAnalytical ChemistryEnergy consumptionchemistry.chemical_compoundWastewaterVolume (thermodynamics)chemistryEnvironmental scienceSulphate-rich urban wastewaterOperating costTECNOLOGIA DEL MEDIO AMBIENTE
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Environmental impact of submerged anaerobic MBR (SAnMBR) technology used to treat urban wastewater at different temperatures

2013

[EN] The objective of this study was to assess the environmental impact of a submerged anaerobic MBR (SAnMBR) system in the treatment of urban wastewater at different temperatures: ambient temperature (20 and 33 degrees C), and a controlled temperature (33 degrees C). To this end, an overall energy balance (OEB) and life cycle assessment (LCA), both based on real process data, were carried out. Four factors were considered in this study; (1) energy consumption during wastewater treatment; (2) energy recovered from biogas capture; (3) potential recovery of nutrients from the final effluent; and (4) sludge disposal. The OEB and LCA showed SAnMBR to be a promising technology for treating urban…

INGENIERIA HIDRAULICAEnvironmental EngineeringBioengineeringEnergy balanceEnvironmentWastewaterWaste Disposal FluidWater PurificationEnvironmental impactLife cycle assessmentBioreactorsBiogasAnaerobiosisCitiesWaste Management and DisposalLife-cycle assessmentEffluentTECNOLOGIA DEL MEDIO AMBIENTESubmerged anaerobic MBR (SAnMBR)SewageSulfatesRenewable Energy Sustainability and the EnvironmentGlobal warming potentialTemperatureEnvironmental engineeringMembranes ArtificialGeneral MedicineWaste treatmentWastewaterBiofuelBiofuelsEnvironmental scienceSewage treatmentWater treatmentMethane
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Designing an AnMBR-based WWTP for energy recovery from urban wastewater: The role of primary settling and anaerobic digestion

2015

The main objective of this paper is to assess different treatment schemes for designing a submerged anaerobic membrane bioreactor (AnMBR) based WWTP. The economic impact of including a primary settling (PS) stage and further anaerobic digestion (AD) of the wasted sludge has been evaluated. The following operating scenarios were considered: sulphate-rich and low-sulphate urban wastewater (UWW) treatment at 15 and 30 ºC. To this aim, the optimum combination of design/operating parameters that resulted in minimum total cost (CAPEX plus OPEX) for the different schemes and scenarios was determined. The AnMBR design was based on both simulation and experimental results from an AnMBR plant featuri…

Energy recoveryEngineeringCAPEX/OPEXINGENIERIA HIDRAULICAIndustrial-scale hollow-fibre membranesbusiness.industryFull-scale designEnvironmental engineeringSubmerged anaerobic MBR (AnMBR)Filtration and SeparationAnaerobic membrane bioreactorAnalytical ChemistryAnaerobic digestionWastewaterSettlingUrban wastewater treatmentbusinessTECNOLOGIA DEL MEDIO AMBIENTE
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