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RESEARCH PRODUCT
Application of the General Model "Biological Nutrient Removal Model No.1" to upgrade two full-scale WWTPs
Aurora SecoJ. SerraltaF. Garcia-usachRamón BaratA. BouzasJ. RibesMaría Victoria RuanoJosé Ferrersubject
AcidogenesisBiological nutrient removalWATER TREATMENT PLANTSAerobic bacteriachemistry.chemical_elementActivated sludge modelPhosphatesWater PurificationWASTE-WATERBNRM1Environmental ChemistryAnaerobiosisOrganic ChemicalsWaste Management and DisposalTECNOLOGIA DEL MEDIO AMBIENTEWater Science and TechnologyCALIBRATIONSewagePhosphorusEnvironmental engineeringGeneral MedicineModels TheoreticalASM2DAerobiosisACTIVATED-SLUDGE MODELActivated sludge modelsEnhanced biological phosphorus removalWastewaterchemistrySIMULATIONPlant-wide mathematical modellingEnvironmental scienceSewage treatmentWater treatmentSanitary EngineeringWWTP upgradingdescription
In this paper, two practical case studies for upgrading two wastewater treatment plants (WWTPs) using the general model BNRM1 (Biological Nutrient Removal Model No. 1) are presented. In the first case study, the Tarragona WWTP was upgraded by reducing the phosphorus load to the anaerobic digester in order to minimize the precipitation problems. Phosphorus load reduction was accomplished by mixing the primary sludge and the secondary sludge and by elutriating the mixed sludge. In the second case study, the Alcantarilla WWTP, the nutrient removal was enhanced by maintaining a relatively low dissolved oxygen concentration in Stage A to maintain the acidogenic bacteria activity. The VFA produced in Stage A favour the denitrification process and biological phosphorus removal in Stage B. These case studies demonstrate the benefits of using the general model BNRM1 to simulate settling processes and biological processes related to both anaerobic and aerobic bacteria in the same process unit.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-05-01 |