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Welcome to the discussion about PhreeqPy. PhreeqPy provides Open Source tools for working with PHREEQC from Python.

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8/11/25

PHREEQC Input for Multiple Acid Mine Drainage Samples — Fluoride Speciation, Controlling Factors & Exporting log K

Hello everyone, I'm working on modelling 35 water samples collected from an acid mine drainage

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PHREEQC Input for Multiple Acid Mine Drainage Samples — Fluoride Speciation, Controlling Factors & Exporting log K

Hello everyone, I'm working on modelling 35 water samples collected from an acid mine drainage

8/11/25

sheng chen, Dr. Mike Mueller2

4/2/25

Am 02.04.25 um 01:45 schrieb sheng chen: > When I am using phreeqpy (version 0.6) with the current

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Am 02.04.25 um 01:45 schrieb sheng chen: > When I am using phreeqpy (version 0.6) with the current

4/2/25

Calvin Scott, Dr. Mike Mueller2

9/9/24

Coupling PHREEQC with other programming languages to simulate reactive transport in a 3D reservoir.

Hi Calvin, I am currently working on this topic. I gave a poster presentation at "MODFLOW and

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Coupling PHREEQC with other programming languages to simulate reactive transport in a 3D reservoir.

Hi Calvin, I am currently working on this topic. I gave a poster presentation at "MODFLOW and

9/9/24

4/17/24

GSPy-PhreeqPy coupling

I am getting the impression this is not something which has been done, but I wanted to check on this

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GSPy-PhreeqPy coupling

I am getting the impression this is not something which has been done, but I wanted to check on this

4/17/24

Ajayi Temitope, Ignasi Puigdomenech2

10/24/23

Accessing IPhreeqC COM from Windows

I guess that you already found the solution to your problem... I found the same, or at least similar

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Accessing IPhreeqC COM from Windows

I guess that you already found the solution to your problem... I found the same, or at least similar

10/24/23

Tom Kibblewhite

2/15/23

Using PhreeqPy to interrupt a model and calculate new values for subsequent simulations

Hi Mike, David, et al. In the PhreeqC input script attached (after some kinetic mineral reactions to

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Using PhreeqPy to interrupt a model and calculate new values for subsequent simulations

Hi Mike, David, et al. In the PhreeqC input script attached (after some kinetic mineral reactions to

2/15/23

vala khaledi, Maxim P. Yutkin6

9/12/22

A beginner level question

Dear Maxim, I truly appreciate your insightful and thorough answer. The main and most important focus

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A beginner level question

Dear Maxim, I truly appreciate your insightful and thorough answer. The main and most important focus

9/12/22

7/27/22

excess free energy of solid solution

Dear all, If I understand it correctly from the literature, the excess free energy (\Delta G ^{E}) of

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excess free energy of solid solution

Dear all, If I understand it correctly from the literature, the excess free energy (\Delta G ^{E}) of

7/27/22

Dr. Mike Mueller

4/18/22

New release 0.5.1 using IPhreeqc 3.7

Hi PhreeqPy users, I just released a new version of PhreeqPy. Please install with: pip install -U

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New release 0.5.1 using IPhreeqc 3.7

Hi PhreeqPy users, I just released a new version of PhreeqPy. Please install with: pip install -U

4/18/22

3/16/22

output file on python

Hi, I am having difficulty in reproducing the same print out that I get from the Phreeqc ver 3 GUI.

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output file on python

Hi, I am having difficulty in reproducing the same print out that I get from the Phreeqc ver 3 GUI.

3/16/22

4/14/20

Soln_vol, vm, rho_0 with Pitzer database issues

After some tries, I think the issue is related with the database format. Although all the

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Soln_vol, vm, rho_0 with Pitzer database issues

After some tries, I think the issue is related with the database format. Although all the

4/14/20

Minjeong Kim, … Dr. Mike Mueller6

11/20/19

Using "RunAccumulated" in PhreeqPy

Am 18.11.19 um 01:15 schrieb Minjeong Kim: > Dear Mike, > > > Thanks for your answer.

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Using "RunAccumulated" in PhreeqPy

Am 18.11.19 um 01:15 schrieb Minjeong Kim: > Dear Mike, > > > Thanks for your answer.

11/20/19

Maxim Yutkin, Parkhurst, David2

9/4/19

dispersive transport and boundary conditions

The mixing model that PHREEQC uses for transport is not commonly used. Usually, the partial

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dispersive transport and boundary conditions

The mixing model that PHREEQC uses for transport is not commonly used. Usually, the partial

9/4/19

Hilary, Patel Ravi8

8/7/17

trying to import the module

Hmmm you need to install pip I am not sure how you installed python.maybe you should use standard

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trying to import the module

Hmmm you need to install pip I am not sure how you installed python.maybe you should use standard

8/7/17

7/6/16

phreeqpy for phreeqcRM

Are there any plans of updating phreeqpy using phreeqcRM? Or has anyone already tried using phreeqcRM

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phreeqpy for phreeqcRM

Are there any plans of updating phreeqpy using phreeqcRM? Or has anyone already tried using phreeqcRM

7/6/16

Parkhurst, David, Oscar Branson3

12/4/15

Re: [phreeqpy-users] How to get the output of phreeqpy? Please help

First, to get the output from a RunFile or RunString command, you can either write a file or get a

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Re: [phreeqpy-users] How to get the output of phreeqpy? Please help

First, to get the output from a RunFile or RunString command, you can either write a file or get a

12/4/15

charleywan2004, … Charlton, Scott6

11/25/15

Problem loading database, please help!

Yes, it works. Thank you so much! I used the database from version 2.18 and it worked. Please let me

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Problem loading database, please help!

Yes, it works. Thank you so much! I used the database from version 2.18 and it worked. Please let me

11/25/15

Yost, … Charlton, Scott3

10/31/13

problem reading database

Also, make sure the database (phreeqc.dat) is in the same directory as your python script. On Thu,

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problem reading database

Also, make sure the database (phreeqc.dat) is in the same directory as your python script. On Thu,

10/31/13

Ivan M, Parkhurst, David8

5/20/13

Form of KINETIC_MODIFY for more than one component

Sorry, did not mean to post the previous. David Parkhurst Hydrologist dlp...@usgs.gov Profile: https:

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Form of KINETIC_MODIFY for more than one component

Sorry, did not mean to post the previous. David Parkhurst Hydrologist dlp...@usgs.gov Profile: https:

5/20/13

5/18/13

Column limit in the BASIC interpreter

Hi David, Does the BASIC interpreter has a limitation in the column number? I found out that if the

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Column limit in the BASIC interpreter

Hi David, Does the BASIC interpreter has a limitation in the column number? I found out that if the

5/18/13

Ivan M, Parkhurst, David3

5/17/13

Initialization of a kinetic reactant

Hi David, The first line, with the time -99 has i_soln, and the rest of the lines have react.

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Initialization of a kinetic reactant

Hi David, The first line, with the time -99 has i_soln, and the rest of the lines have react.

5/17/13

Ivan M, Parkhurst, David3

4/26/13

Minimal concentration for PUNCH MOL

Hello again David, I verified again, the concentrations are being cut off around 1e-30 indeed. One of

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Minimal concentration for PUNCH MOL

Hello again David, I verified again, the concentrations are being cut off around 1e-30 indeed. One of

4/26/13

Ivan M, Parkhurst, David2

4/7/13

Kinetic reactions integration order

> My question is: what is the integration order and parameter usage? Parameters are available only

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Kinetic reactions integration order

> My question is: what is the integration order and parameter usage? Parameters are available only

4/7/13

Ivan M, Parkhurst, David2

3/7/13

Fix amount of water in a reaction

Not really. Mineral and aqueous reactions change the mass of water. You could always rescale with a

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Fix amount of water in a reaction

Not really. Mineral and aqueous reactions change the mass of water. You could always rescale with a

3/7/13

Ivan M, Parkhurst, David8

3/5/13

SOLUTION_MODIFY using species, not elements

Decoupling redox states is more complicated. You cannot do it through SOLUTION_MODIFY. You need to

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SOLUTION_MODIFY using species, not elements

Decoupling redox states is more complicated. You cannot do it through SOLUTION_MODIFY. You need to

3/5/13

Ivan M, … Dr. Mike Mueller4

2/6/13

Create more than one instance of IPhreeqc

Hi Mike, Thanks for your answer. 2013/2/6 Dr. Mike Mueller <mmue...@hydrocomputing.com> Am

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Create more than one instance of IPhreeqc

Hi Mike, Thanks for your answer. 2013/2/6 Dr. Mike Mueller <mmue...@hydrocomputing.com> Am

2/6/13

2/6/13

Error creating more than one CreateIPhreeqc - Solution

Hi all, After posting, in the very traditional "didn't wait before post" I've found

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Error creating more than one CreateIPhreeqc - Solution

Hi all, After posting, in the very traditional "didn't wait before post" I've found

2/6/13

Ivan M, Parkhurst, David4

2/4/13

Use of RunAccumulated and RUN_CELL

> I did some tests with the -time_step option in RUN_CELL. My understanding is that if I give the

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Use of RunAccumulated and RUN_CELL

> I did some tests with the -time_step option in RUN_CELL. My understanding is that if I give the

2/4/13

Parkhurst, David, Ivan M2

2/1/13

PHREEQC version 3

Dear developers, I report success in compiling and running some examples with SOLUTION and KINETICS

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PHREEQC version 3

Dear developers, I report success in compiling and running some examples with SOLUTION and KINETICS

2/1/13

Ivan M, Parkhurst, David8

1/24/13

Changing kinetic reactant with SOLUTION_MODIFY

If you transport total_H, total_O, and charge, plus all other elements, you can use SOLUTION_MODIFY

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Changing kinetic reactant with SOLUTION_MODIFY

If you transport total_H, total_O, and charge, plus all other elements, you can use SOLUTION_MODIFY

1/24/13

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