Transcript Document

Some fluid components (mmolal)
-
10
As(OH)4
8
6
Lactate
CH3 COO
4
2
---
AsO4
0
0
+10
+20
+30
Time (hr)
+40
+50
+60
Config → Redox Couples...
Decouple redox pairs for electron
donating and accepting half reactions.
e− donor
e− acceptor
Enter initial fluid composition including
electron donating and accepting species.
“add” → Fixed → pH
“add” → Kinetic → Microbial reaction
Go to the Reactants pane to fix pH and enable microbial kinetics.
Enter microbial redox reaction.
Enter thermodynamic constraints
and kinetic parameters, including:
rate constant
● half-saturation constants
● initial biomass
● growth yield and decay constant
● promoting and inhibiting species
● ATP threshold energy
●
Rate is initially biomass limited, but
increases until thermodynamic and
kinetic limitations develop.