[Jude]

Hi Bryan,

I've tried to decoupled i'm still not getting the same thing.

Please I will appreciate your input.

Regards,

Jude

[Eh vs Ph]

On 7/11/2019 at 11:33 PM, Brian Farrell said:

Hi Jude,

It's really hard to tell without any knowledge of how your model or the originals were set up. One guess is that the originals considered only inorganic carbon, whereas you're forming various organic species under reducing conditions. You can decouple the various carbon redox species from the HCO3- basis species to limit your calculation to inorganic carbon. For more information, please see 2.4 Redox couples and 7.3 Redox disequilibrium in the GWB Essentials Guide.

If you have more questions, you'll have to provide your Act2 input file, your thermo dataset, and more information about how the original diagrams were made.

Regards,

Brian Farrell
Aqueous Solutions

Hello Brian,

Please help me have a look at my reply.

Thanks

Jude

[How to remove the dashed line in the mosaic diagram of Act2]

Hello Polly,

Please do you know to plot Eh vs Ph plot on act2 with your own database  put in the system 

[Eh vs Ph]

Hello Brian,

Thank you for your prompt response.

I've tried to decouple it as you advised, it's not giving me the same thing as the model.

The data base i used  is the thermo.com.V8.R6+.tdat which is said to be gotten from SUPCRT92 . I've also attached my input file as well.

To be honest, i saw model i'm working on in a  paper which i attached below  there are no other information on how the Model was built.

I look forward to your favourable assitance with this Brian.

Regards

Jude

7 hours ago, Brian Farrell said:

Hi Jude,

It's really hard to tell without any knowledge of how your model or the originals were set up. One guess is that the originals considered only inorganic carbon, whereas you're forming various organic species under reducing conditions. You can decouple the various carbon redox species from the HCO3- basis species to limit your calculation to inorganic carbon. For more information, please see 2.4 Redox couples and 7.3 Redox disequilibrium in the GWB Essentials Guide.

If you have more questions, you'll have to provide your Act2 input file, your thermo dataset, and more information about how the original diagrams were made.

Regards,

Brian Farrell
Aqueous Solutions

 

Hello Brian,

Thank you for your prompt response.

I've tried to decouple it as you advised, it's not giving me the same thing as the model.

The data base i used  is the thermo.com.V8.R6+.tdat which is said to be gotten from SUPCRT92 . I've also attached my input file as well.

To be honest, i saw model i'm working on in a  paper which i attached below  there are no other information on how the Model was built.

I look forward to your favourable assitance with this Brian.

Regards

Jude

 

 

MAG-4_Burton.Machel.Qi_SEMP_1993.pdf

[Eh vs Ph]

Dear Bryan,

Please i'm in need of help with Eh vs Ph plot with act2. I'm trying to reproduce a thermodynamic model that was done  with SUPCRT92  with Geochemist Work Bench's thermodynamic Model.

I realise that my result is not the same, even after using same Delta G values that was used in SUPCRT92. Please any ideas why the results are not the same please? is there any way you can help me. I want to reproduce the same thing that was done on SUPCRT92.