def model(self):
m = ConcreteModel()
m.db = Database()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(
default={
"solute_list": [
"cod",
"nonbiodegradable_cod",
"ammonium_as_nitrogen",
"phosphate_as_phosphorous",
]
})
m.fs.unit = AnaerobicMBRMECZO(default={
"property_package": m.fs.params,
"database": m.db
})
m.fs.unit.inlet.flow_mass_comp[0, "H2O"].fix(0.043642594)
m.fs.unit.inlet.flow_mass_comp[0, "cod"].fix(1.00625e-4)
m.fs.unit.inlet.flow_mass_comp[0, "nonbiodegradable_cod"].fix(1e-20)
m.fs.unit.inlet.flow_mass_comp[0,
"ammonium_as_nitrogen"].fix(4.59375e-06)
m.fs.unit.inlet.flow_mass_comp[0, "phosphate_as_phosphorous"].fix(
2.1875e-06)
return m
def model(self):
m = ConcreteModel()
m.fs = FlowsheetBlock(default={"dynamic": False})
m.fs.params = WaterParameterBlock(
default={"solute_list": ["cod", "nonbiodegradable_cod"]})
m.fs.unit = AnaerobicMBRMECZO(default={
"property_package": m.fs.params,
"database": db
})
return m
def test_ffCOD_not_in_solute_list():
model = ConcreteModel()
model.db = Database()
model.fs = FlowsheetBlock(default={"dynamic": False})
model.fs.params = WaterParameterBlock(default={"solute_list": ["cod"]})
with pytest.raises(
ValueError,
match=
"nonbiodegradable_cod must be included in the solute list since"
" this unit model converts cod to nonbiodegradable_cod."):
model.fs.unit = AnaerobicMBRMECZO(default={
"property_package": model.fs.params,
"database": model.db
})
def test_COD_not_in_solute_list():
model = ConcreteModel()
model.db = Database()
model.fs = FlowsheetBlock(default={"dynamic": False})
model.fs.params = WaterParameterBlock(
default={"solute_list": ["nonbiodegradable_cod"]})
with pytest.raises(
ValueError,
match=
"fs.unit - key_reactant cod for reaction cod_to_nonbiodegradable_cod "
"is not in the component list used by the assigned property package.",
):
model.fs.unit = AnaerobicMBRMECZO(default={
"property_package": model.fs.params,
"database": model.db
})