Chapter 4: Activated Sludge Modelling - IqTMA-UVa

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Processes in ASM1Biological processesj Process1 Heterotrophic aerobic growth2 Heterotrophic anoxic growth3 Autotrophic growth (Nitrification)4 Heterotrophic decay5 Autotrophic decay6 Ammonification7 Organic matter hydrolysis8 Organic nitrogen hydrolysisBiomass GrowthBiomass decayAmmonification of organic NOrganic Matter Hydrolisis74
Processes in ASM1ORGANICNITROGENSOLUBLEORGANICNITROGENPARTICULATESOLUBLEINERTSUBSTRATESUSPENDEDINERTSUBSTRATES NSX NSS IX IAMMONIANITROGENS NHNITRATESS NOAUTOTROPHICBIOMASSSOLUBLE INERTNITROGENS NIX BAREADILYBIODEGRADABLESUBSTRATEHETEROTROPHICBIOMASSDEBRISFROMBIOMASSNo interactionS SX BHX OSLOWLYBIODEGRADABLESUBSTRATENitrogen RemovalX SOrganic Matter Removal75
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Solving the Exponential ModelBy sol
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Endogenous decayIf part of the biom
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Continuous Treatment in wellmixed r
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ExerciseThe growth of a strain of L
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Maximum Dilution Rate: DmaxCell con
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Influence of nbVSSAn amount of non
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Influence of nbVSSFraction of activ
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Biomass retentionCell washout is mo
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AerationSurfaceDiffused$$$ Aeration
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Many configuration possible!The A2/
Page 24 and 25: OverviewApplicationCostsAdvantagesD
Page 26 and 27: Solid Retention Time (SRT)The SRT i
Page 28 and 29: Expression of SBiomass balance:VdX/
Page 30 and 31: Total mixed liquor VSS (MLVSS)MLVSS
Page 32 and 33: ..and if we have nitrification??P M
Page 34 and 35: Processes for BOD Removal andNitrif
Page 44 and 45: Processes for Biological NitrogenRe
Page 58 and 59: Processes for BiologicalPhosphorous
Page 64 and 65: Activated Sludge ModelingASM nº164
Page 66 and 67: Biological reaction kineticsMicroor
Page 68 and 69: Model presentationMASS BALANCES:•
Page 70 and 71: Components in ASM1Organic matter ch
Page 72 and 73: Components in ASM172
Page 76 and 77: Organic Matter BiodegradationORGANI
Page 78 and 79: Organic matter biodegradationAerobi
Page 80 and 81: Organic matter biodegradationSlowly
Page 82 and 83: NitrificationNitrification Kinetics
Page 84 and 85: NitrificationAutotrophic biomass de
Page 86 and 87: NitrificationSoluble organic N ammo
Page 88 and 89: DenitrificationHeterotrophic Biomas
Page 90 and 91: Stoichiometric Matrix90
Page 92 and 93: Conclusions• The Model works at c
Page 94 and 95: In BioWin3Bioreactor Brush aeratorS
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Chapter 4: Activated Sludge Modelling - IqTMA-UVa

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