A link is required to translate between biological and physically- or chemically-mediated processes to develop whole-plant modeling of wastewater treatment. This model mediates the interaction between the Anaerobic Digestor Model 1 (ADM1) and the Activated Sludge Model 1 (ASM1).
The model relies on the following key assumptions:
- supports only liquid phase
- supports only ADM1 to ASM1 translations
.. index:: pair: watertap.unit_models.translators.translator_adm1_asm1;translator_adm1_asm1
.. currentmodule:: watertap.unit_models.translators.translator_adm1_asm1
The translator degrees of freedom are the inlet feed state variables:
- temperature
- pressure
- volumetric flowrate
- solute compositions
- cations
- anions
This model provides two ports:
- inlet
- outlet
| Description | Symbol | Indices |
|---|---|---|
| Time | t | [0] |
| Inlet/outlet | x | ['in', 'out'] |
| Phases | p | ['Liq'] |
| Inlet Components | j | ['H2O', 'S_su', 'S_aa', 'S_fa', 'S_va', 'S_bu', 'S_pro', 'S_ac', 'S_h2', 'S_ch4', 'S_IC', 'S_IN', 'S_I', 'X_c', 'X_ch', 'X_pr', 'X_li', 'X_su', 'X_aa', 'X_fa', 'X_c4', 'X_pro', 'X_ac', 'X_h2', 'X_I', 'S_cat', 'S_an', 'S_co2'] |
| Ion | j | ['S_cat', 'S_an'] * |
| Outlet Components | j | ['H2O', 'S_I', 'S_S', 'X_I', 'X_S', 'X_BH', 'X_BA', 'X_P', 'S_O', 'S_NO', 'S_NH', 'S_ND', 'X_ND', 'S_ALK'] |
| Readily Biodegradable COD | k | ['S_su', 'S_aa', 'S_fa', 'S_va', 'S_bu', 'S_pro', 'S_ac'] |
| Slowly Biodegradable COD | m | ['X_c','X_ch', 'X_pr', 'X_li', 'X_su', 'X_aa', 'X_fa', 'X_c4', 'X_pro', 'X_ac', 'X_h2'] |
- Notes
- * Ion" is a subset of "Component" and uses the same symbol j.
Additional documentation on the ADM1 property model can be found here: Anaerobic Digestion Model 1 Documentation
| Description | Symbol | Variable |
|---|---|---|
| Monosaccharides, S_su | S_{su} | S_su |
| Amino acids, S_aa | S_{aa} | S_aa |
| Long chain fatty acids, S_fa | S_{fa} | S_fa |
| Total valerate, S_va | S_{va} | S_va |
| Total butyrate, S_bu | S_{bu} | S_bu |
| Total propionate, S_pro | S_{pro} | S_pro |
| Total acetate, S_ac | S_{ac} | S_ac |
| Hydrogen gas, S_h2 | S_{h2} | S_h2 |
| Methane gas, S_ch4 | S_{ch4} | S_ch4 |
| Inorganic carbon, S_IC | S_{IC} | S_IC |
| Inorganic nitrogen, S_IN | S_{IN} | S_IN |
| Soluble inerts, S_I | S_I | S_I |
| Composites, X_c | X_c | X_c |
| Carbohydrates, X_ch | X_{ch} | X_ch |
| Proteins, X_pr | X_{pr} | X_pr |
| Lipids, X_li | X_{li} | X_li |
| Sugar degraders, X_su | X_{su} | X_su |
| Amino acid degraders, X_aa | X_{aa} | X_aa |
| Long chain fatty acid (LCFA) degraders, X_fa | X_{fa} | X_fa |
| Valerate and butyrate degraders, X_c4 | X_{c4} | X_c4 |
| Propionate degraders, X_pro | X_{pro} | X_pro |
| Acetate degraders, X_ac | X_{ac} | X_ac |
| Hydrogen degraders, X_h2 | X_{h2} | X_h2 |
| Particulate inerts, X_I | X_I | X_I |
| Total cation equivalents concentration, S_cat | S_{cat} | S_cat |
| Total anion equivalents concentration, S_an | S_{an} | S_an |
| Carbon dioxide, S_co2 | S_{co2} | S_co2 |
NOTE: S_h2 and S_ch4 have vapor phase and liquid phase, S_co2 only has vapor phase, and the other components only have liquid phase. The amount of CO2 dissolved in the liquid phase is equivalent to S_IC - S_HCO3-.
Additional documentation on the ASM1 property model can be found here: Activated Sludge Model 1 Documentation
| Description | Symbol | Variable |
|---|---|---|
| Soluble inert organic matter, S_I | S_I | S_I |
| Readily biodegradable substrate S_S | S_S | S_S |
| Particulate inert organic matter, X_I | X_I | X_I |
| Slowly biodegradable substrate X_S | X_S | X_S |
| Active heterotrophic biomass X_B,H | X_{B,H} | X_BH |
| Active autotrophic biomass X_B,A | X_{B,A} | X_BA |
| Particulate products arising from biomass decay, X_P | X_P | X_P |
| Oxygen, S_O | S_O | S_O |
| Nitrate and nitrite nitrogen, S_NO | S_{NO} | S_NO |
| NH4 ^{+} + NH _{3} Nitrogen, S_NH | S_{NH} | S_NH |
| Soluble biodegradable organic nitrogen, S_ND | S_{ND} | S_ND |
| Particulate biodegradable organic nitrogen, X_ND | X_{ND} | X_ND |
| Alkalinity, S_ALK | S_{ALK} | S_ALK |
| Description | Equation |
|---|---|
| Pressure balance | P_{out} = P_{in} |
| Temperature balance | T_{out} = T_{in} |
| Volumetric flow equality | F_{out} = F_{in} |
| Inert soluble COD balance | S_{I, out} = S_{I, in} |
| Inert particulate COD balance | X_{I, out} = X_{I, in} |
| Soluble biodegradable COD balance | S_{S, out} = S_{su, in} + S_{aa, in} + S_{fa, in} + S_{va, in} + S_{bu, in} + S_{pro, in} + S_{ac, in} |
| Particulate biodegradable COD balance | X_{S, out} = X_{c, in} + X_{ch, in} + X_{pr, in} + X_{li, in} + X_{su, in} + X_{aa, in} + X_{fa, in} + X_{c4, in} + X_{pro, in} + X_{ac, in} + X_{h2, in} |
| Inorganic nitrogen balance | S_{NH, out} = S_{IN, in} |
| Organic nitrogen balance | S_{ND, out} = (S_{I, in} * N_i) + (S_{aa, in} * N_{aa}) |
| Particulate organic nitrogen balance | X_{ND, out} = N_{bac} * (X_{su, in} + X_{aa, in} + X_{fa, in} + X_{c4, in} + X_{pro, in} + X_{ac, in} + X_{h2, in}) + N_i * X_{I, in} + N_{xc} * X_{c, in} + N_{aa} * X_{pr, in} - x_{ie} * X_{I, in} |
| Alkalinity equation | S_{ALK, out} = S_{IC, in} |
.. currentmodule:: watertap.unit_models.translators.translator_adm1_asm1
.. autoclass:: TranslatorDataADM1ASM1
:members:
:noindex:
[1] Copp J. and Jeppsson, U., Rosen, C., 2006. Towards an ASM1 - ADM1 State Variable Interface for Plant-Wide Wastewater Treatment Modeling. Proceedings of the Water Environment Federation, 2003, pp 498-510. https://www.accesswater.org/publications/proceedings/-290550/towards-an-asm1---adm1-state-variable-interface-for-plant-wide-wastewater-treatment-modeling