modelpreclar3
Inverse ASM3 Static Primary Clarifier Model
Extends from WasteWater.Icons.preclar2 (Icon for a static preclarifier tank), ASM3.Interfaces.stoichiometry (ASM3 stoichiometric coefficients).
Information
This is a special case of the ASM3 static primary clarifier model.
Here measurement data at the end (effluent) of the preclarifier needs to be provided.
This is typical for some real plants. Influent is then calculated.
Parameters:
- ASM3 conversion factors for calculation of Xtss
V - volume of the preclarifier
aS* - fractions of e.g. COD in influent (soluble components)
aX* - fractions of e.g. COD in influent (particular components)
n_corr- correction factor for the efficiency function
Dimension of InPort is 4.
1 - Chemical Oxygen Demand (COD) at effluent of primary clarifier
2 - nitrate nitrogen (Sno) at effluent of primary clarifier
3 - ammonium nitrogen (Snh) at effluent of primary clarifier
4 - pH-value at effluent of primary clarifierParameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | f_Si (from stoichiometry) | 0.0 | Production of Si in hydrolysis [g COD_Si/(g COD_Xs)] |
| Real | Y_STO_O (from stoichiometry) | 0.85 | Aerobic yield of stored product per Ss [g COD_Xsto/(g COD_Ss)] |
| Real | Y_STO_NOX (from stoichiometry) | 0.80 | Anoxic yield of stored product per Ss [g OD_Xsto/(g COD_Ss)] |
| Real | Y_H_O (from stoichiometry) | 0.63 | Aerobic yield of heterotrophic biomass [g COD_Xh/(g COD_Xsto)] |
| Real | Y_H_NOX (from stoichiometry) | 0.54 | Anoxic yield of heterotrophic biomass [g COD_Xh/(g COD_Xsto)] |
| Real | Y_A (from stoichiometry) | 0.24 | Yield of autotrophic biomass per NO3-N [g COD_Xa/(g N_Snox)] |
| Real | f_Xi (from stoichiometry) | 0.20 | Production of Xi in endog. respiration [g COD_Xi/(g COD_Xbm)] |
| Real | i_N_Si (from stoichiometry) | 0.01 | N content of Si [g N/(g COD_Si)] |
| Real | i_N_Ss (from stoichiometry) | 0.03 | N content of Ss [g N/(g COD_Ss)] |
| Real | i_N_Xi (from stoichiometry) | 0.02 | N content of Xi [g N/(g COD_Xi)] |
| Real | i_N_Xs (from stoichiometry) | 0.04 | N content of Xs [g N/(g COD_Xs)] |
| Real | i_N_BM (from stoichiometry) | 0.07 | N content of biomass Xh,Xa [g N/(g COD_bm)] |
| Real | i_SS_Xi (from stoichiometry) | 0.75 | SS to COD ratio for Xi [g SS/(g COD_Xi)] |
| Real | i_SS_Xs (from stoichiometry) | 0.75 | SS to COD ratio for Xs [g SS/(g COD_Xs)] |
| Real | i_SS_BM (from stoichiometry) | 0.90 | SS to COD ratio for biomass Xh,Xa [g SS/(g COD_Xbm)] |
| Modelica.SIunits.Volume | V | 500 | Volume of primary clarifier tank |
| Real | aSo | 0.0 | Dissolved oxygen in the inflow [mg/l] |
| Real | aSi | 5/100 | Fraction of Si of the total COD in the influent |
| Real | aSs | 15/100 | Fraction of Ss of the total COD in the influent |
| Real | aXi | 15/100 | Fraction of Xi of the total COD in the influent |
| Real | aXs | 45/100 | Fraction of Xs of the total COD in the influent |
| Real | aXh | 20/100 | Fraction of Xh of the total COD in the influent |
| Real | aXsto | 0/100 | Fraction of Xsto of the total COD in the influent |
| Real | aXa | 0/100 | Fraction of Xa of the total COD in the influent |
| Real | n_corr | 1.0 | Correction faktor for the efficiency function |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ASM3.Interfaces.WWFlowAsm3in | In | ||
| ASM3.Interfaces.WWFlowAsm3out | Out | ||
| Modelica.Blocks.Interfaces.RealInput[4] | MeasurePort |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | hrt_h | hydraulic residence time in primary sedimentation tank [h] | |
| Real | n_COD | efficiency of COD removal [%] | |
| Real | n_X | efficiency transformed to particulate fractions [%] | |
| Real | COD | ||
| Real | CODin | ||
| Real | CODout | ||
| Real | XCOD | ||
| Real | H | ||
| WWU.MassConcentration | So | Dissolved oxygen | |
| WWU.MassConcentration | Si | Soluble inert organics | |
| WWU.MassConcentration | Ss | Readily biodegradable substrates | |
| WWU.MassConcentration | Snh | Ammonium | |
| WWU.MassConcentration | Sn2 | Dinitrogen, released by nitrification | |
| WWU.MassConcentration | Snox | Nitrite plus nitrate | |
| WWU.Alkalinity | Salk | Alkalinity, bicarbonate | |
| WWU.MassConcentration | Xi | Inert particulate organics | |
| WWU.MassConcentration | Xs | Slowly biodegradable substrates | |
| WWU.MassConcentration | Xh | Heterotrophic biomass | |
| WWU.MassConcentration | Xsto | Organics stored by heterotrphs | |
| WWU.MassConcentration | Xa | Autotrophic nitrifying biomass |
Contents
| Name | Description |
|---|---|
| WWU |