Chapter 4: Activated Sludge Modelling - IqTMA-UVa
Chapter 4: Activated Sludge Modelling - IqTMA-UVa Chapter 4: Activated Sludge Modelling - IqTMA-UVa
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12.07.2015
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Influence of nbVSSFraction of active biomass: F x,act = X/VSS = r g /r VSSIndicate how much of the VSS is “active” (serve to COD removal)Net biomass yield: Y = - r g /r suObserved yield: Y obs = - r VSS / r suFrom the COD balance:We assume the debris have asimilar composition to thebiomass, and the same CODequivalence of 1.42 g COD/g VSS= COD debrisO 2 -required = CODused – CODbiomass – CODproductsO 2 -required (kg/d) = Q(S 0 -S) – 1.42(r g + f d k d X)16
The activated sludgeprocess17
- Page 4 and 5: Solving the Exponential ModelBy sol
- Page 6 and 7: Endogenous decayIf part of the biom
- Page 8 and 9: Continuous Treatment in wellmixed r
- Page 10 and 11: ExerciseThe growth of a strain of L
- Page 12 and 13: Maximum Dilution Rate: DmaxCell con
- Page 14 and 15: Influence of nbVSSAn amount of non
- Page 18 and 19: Biomass retentionCell washout is mo
- Page 20 and 21: AerationSurfaceDiffused$$$ Aeration
- Page 22 and 23: 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 36 and 37: Processes for BOD Removal andNitrif
- Page 38 and 39: Processes for BOD Removal andNitrif
- Page 40 and 41: Processes for BOD Removal andNitrif
- Page 42 and 43: Processes for BOD Removal andNitrif
- Page 44 and 45: Processes for Biological NitrogenRe
- Page 46 and 47: Processes for Biological NitrogenRe
- Page 48 and 49: Processes for Biological NitrogenRe
- Page 50 and 51: Processes for Biological NitrogenRe
- Page 52 and 53: Processes for Biological NitrogenRe
- Page 54 and 55: Processes for Biological NitrogenRe
- Page 56 and 57: Processes for Biological NitrogenRe
- Page 58 and 59: Processes for BiologicalPhosphorous
- Page 60 and 61: Processes for BiologicalPhosphorous
- Page 62 and 63: Processes for BiologicalPhosphorous
- Page 64 and 65: Activated Sludge ModelingASM nº164
The activated sludgeprocess17
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