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  • Design of conceptual models
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Subject / Started by Replies / Views Last post
Selected moles for EQUILIBRIUM_PHASES

Started by Tom

3 Replies
17400 Views
Last post 05/10/23 12:08
by dlparkhurst
CSTR model (Solving an ODE in PHREEQC)

Started by nickvz

14 Replies
27684 Views
Last post 10/09/14 06:49
by nickvz
pH behaviour in Acetogenesis reaction

Started by ahmadreza_shojaee

2 Replies
2314 Views
Last post 24/10/25 14:16
by ahmadreza_shojaee
Adiabatic boiling in sealed system

Started by Jowita_Loboda

3 Replies
14374 Views
Last post 12/07/25 02:26
by dlparkhurst
binary interactions in SIT model

Started by Laurent

2 Replies
5090 Views
Last post 25/06/25 17:12
by Laurent
Carbonation of cement at a constant CO2 pressure and relative humidity

Started by chliu8219

0 Replies
4590 Views
Last post 11/06/25 12:33
by chliu8219
Custom solid phase dissolution rxn errors

Started by ReaganK

4 Replies
6189 Views
Last post 16/05/25 10:56
by ReaganK
Elements in species have not been tabulated, SiO2

Started by kennedyantwi1

9 Replies
8583 Views
Last post 24/04/25 06:35
by kennedyantwi1
No element or master species given for concentration input

Started by kennedyantwi1

5 Replies
6893 Views
Last post 15/04/25 16:09
by dlparkhurst
Pretreatment of saltwater by rising pH and aeration for Carbonate precipitation

Started by AzadGhadirian

3 Replies
6068 Views
Last post 28/01/25 15:40
by dlparkhurst
Unexpected rise of pH

Started by AzadGhadirian

2 Replies
5095 Views
Last post 12/01/25 20:42
by AzadGhadirian
Atmospheric CO2 ingress into concentrate NaOH Solution

Started by magan.govender

2 Replies
4792 Views
Last post 16/11/24 17:29
by magan.govender
Modeling missing species

Started by MAlexanderB

1 Replies
4264 Views
Last post 15/10/24 23:09
by dlparkhurst
CO2, pH, and pressure changes

Started by ACH

1 Replies
4138 Views
Last post 12/09/24 18:09
by dlparkhurst
Question about parameter definitions in the dissolution reaction of NO2 and SO2

Started by Amuer

2 Replies
5222 Views
Last post 20/08/24 15:11
by dlparkhurst
Methanogenic bacteria and Methane formation

Started by stfmtu

9 Replies
10325 Views
Last post 06/08/24 19:07
by dlparkhurst
EC Values in Column Experiment

Started by mek001

1 Replies
4289 Views
Last post 25/06/24 14:49
by dlparkhurst
Equation of State for CO2 solubility

Started by jonji.yang@gmail.com

2 Replies
4424 Views
Last post 28/05/24 17:23
by jonji.yang@gmail.com
Calculated Total Alkalinity in brine completely different than measured

Started by Idoboro

3 Replies
4714 Views
Last post 16/05/24 20:46
by dlparkhurst
Multiple minerals dissolved, K, Na, Mg results are different from reality.

Started by duanjiabin

1 Replies
3656 Views
Last post 11/04/24 13:26
by dlparkhurst
Multiple mineral inputs tothe waterrock reaction, need to add the reaction rate?

Started by duanjiabin

0 Replies
2832 Views
Last post 07/04/24 09:18
by duanjiabin
Best Method in PHREEQC to Recombine Dissolved Gas Measures into the Solution

Started by TMPlanter

1 Replies
3336 Views
Last post 02/04/24 21:28
by dlparkhurst
Granite water-rock reaction fails to converge

Started by duanjiabin

4 Replies
5389 Views
Last post 26/02/24 01:19
by duanjiabin
CO2 bubbling from pressurized cylinder

Started by Pakan

2 Replies
4012 Views
Last post 26/12/23 17:48
by Pakan
Batch reaction experiment for CO2

Started by serhatttt

4 Replies
4663 Views
Last post 14/12/23 08:36
by serhatttt
Reproducing hydrogeochemistry of carbonate and phyllosilicate assemblages

Started by mmelwani

2 Replies
4147 Views
Last post 07/12/23 23:50
by mmelwani
Activity coefficient calculation vs databases

Started by IliasBouchkira

1 Replies
3545 Views
Last post 06/09/23 17:44
by dlparkhurst
CO2 Storage: Drying Effects in Saline Aquifers

Started by SubsurfaceDS

1 Replies
3740 Views
Last post 22/06/23 23:12
by dlparkhurst
Considering air and its components in PHREEQC

Started by Tom

6 Replies
14104 Views
Last post 22/06/23 01:41
by dlparkhurst
Usage of SupPʜʀᴇᴇǫᴄ Databases

Started by AntonK

2 Replies
3901 Views
Last post 15/06/23 16:16
by AntonK
Fortran interface PhreeqC

Started by IliasBouchkira

11 Replies
7679 Views
Last post 10/06/23 19:27
by dlparkhurst
Model samplings in a closed reactor

Started by jeanM

2 Replies
3766 Views
Last post 01/06/23 15:47
by dlparkhurst
CO2 solubility

Started by Ricardo Borba

3 Replies
4374 Views
Last post 17/05/23 14:44
by dlparkhurst
Application of results to real cases

Started by dat

1 Replies
3331 Views
Last post 01/05/23 22:28
by dlparkhurst
Basic Conceptual Model for Artificial Groundwater Recharge

Started by bbardet

6 Replies
6225 Views
Last post 03/03/23 16:32
by bbardet
Modeling incongruent dissolution of kaolinite

Started by taa18

3 Replies
4313 Views
Last post 24/02/23 19:27
by taa18
Adding oil phase in phreeqc

Started by dat

5 Replies
5318 Views
Last post 11/01/23 15:33
by dlparkhurst
Two conceptual approaches about unsaturated model

Started by Jeonghwan Hwang

3 Replies
4584 Views
Last post 01/11/22 06:52
by djacques
PHREEQC R package

Started by FlouretAlex

4 Replies
4860 Views
Last post 18/10/22 07:21
by FlouretAlex
Model of Reaction progress with Sulphur concentration

Started by jt2020

23 Replies
13844 Views
Last post 31/03/22 19:13
by jt2020
Hydrogen dissolution in brine

Started by ylg

0 Replies
3413 Views
Last post 03/02/22 07:40
by ylg
Modeling a batch experiment of CO2-rich water with CaCO3

Started by lrossi

6 Replies
6530 Views
Last post 20/12/21 16:11
by lrossi
Calculating pH from H+ concentration input

Started by MarkFP

5 Replies
6624 Views
Last post 02/09/21 16:04
by dlparkhurst
redox couple and element charge

Started by darcy

6 Replies
6956 Views
Last post 02/08/21 17:50
by darcy
Doubt about redox reaction

Started by AnnaJulIQ

1 Replies
3986 Views
Last post 17/05/21 04:36
by dlparkhurst
Zinc and Manganese Leaching Doubt

Started by AnnaJulIQ

5 Replies
5656 Views
Last post 01/05/21 00:48
by dlparkhurst
Addition of a non ideal organic phase

Started by carinej

1 Replies
3718 Views
Last post 16/04/21 22:47
by dlparkhurst
Speciation diagram error

Started by AnnaJulIQ

6 Replies
6308 Views
Last post 13/04/21 21:42
by dlparkhurst
Asking about PHREEQC for Struvite & CSTR modelling

Started by bilapr

1 Replies
4309 Views
Last post 15/02/21 16:17
by dlparkhurst
CO2 degassing

Started by mcossio23

5 Replies
7500 Views
Last post 18/12/20 23:17
by dlparkhurst
Hydrogen dissolution in brine

Started by ylg

8 Replies
7245 Views
Last post 07/12/20 18:13
by dlparkhurst
How can i investigate the interaction between gas-rock or gas-water-rock in phre

Started by Zhanus

1 Replies
3868 Views
Last post 27/11/20 14:53
by dlparkhurst
Question about mass conservation in Phreeqc Calculation

Started by Christinali91

3 Replies
5226 Views
Last post 23/10/20 21:51
by dlparkhurst
Plant absorption

Started by FlouretAlex

3 Replies
4679 Views
Last post 14/10/20 12:11
by MichaelZ20
Estimating soil geochemistry

Started by Pak

8 Replies
7454 Views
Last post 25/09/20 09:52
by Pak
How to Respresent Solid Solution Minerals in PHREEQC?

Started by swhit

4 Replies
6436 Views
Last post 21/08/20 17:56
by swhit
SOLID_SOLUTIONS in pH dependency tests

Started by mbrandely

2 Replies
4758 Views
Last post 14/08/20 07:34
by mbrandely
multiphase multicomponent reactive transport example

Started by Christinali91

1 Replies
4545 Views
Last post 14/07/20 05:04
by dlparkhurst
acid base titration with 2 binding sites in solution

Started by P.Merdy

9 Replies
8924 Views
Last post 21/06/20 16:54
by P.Merdy
Changes in Water Chemistry from Interaction with CO2 for Storage

Started by MariaG

3 Replies
5447 Views
Last post 16/04/20 23:14
by dlparkhurst
Speciation Error using Phreeplot

Started by FlouretAlex

4 Replies
5525 Views
Last post 15/04/20 09:45
by FlouretAlex
Simulating Aluminum mobilization under different Chloride concentration

Started by rudolff16

9 Replies
9905 Views
Last post 09/03/20 14:18
by dlparkhurst
A forward model in WRI

Started by 1106485097@qq.com

7 Replies
7029 Views
Last post 27/12/19 19:52
by dlparkhurst
aerobic metabolism in a closed bottle with fixed headspace

Started by mhkaufman

4 Replies
5123 Views
Last post 24/09/19 00:01
by dlparkhurst
cement hydration

Started by sama.k

1 Replies
4669 Views
Last post 23/09/19 23:55
by dlparkhurst
Geothermal model - COMSOL - Phreeqc - iCP - 4 Phase model

Started by bernhards

0 Replies
3794 Views
Last post 18/06/19 18:04
by bernhards
MOVED: conductance in SELECTED_OUTPUT

Started by Charlie

0 Replies
3626 Views
Last post 27/05/19 10:32
by Charlie
Geothermal reservoir

Started by Hydroman

10 Replies
8843 Views
Last post 06/03/19 16:58
by dlparkhurst
Adding Flow Kinetic Term in Model

Started by jLi200H

2 Replies
4785 Views
Last post 15/11/18 10:34
by jLi200H
TCEQ - Identity of soil information from a harmonised database

Started by peterwadeuk

1 Replies
4276 Views
Last post 13/11/18 14:30
by peterwadeuk
Glass Leaching in Water

Started by jLi200H

4 Replies
6086 Views
Last post 05/09/18 09:17
by jLi200H
Brute force denitrifying?

Started by peterwadeuk

1 Replies
5023 Views
Last post 13/07/18 16:29
by dlparkhurst
Balancing dissolved carbon with atmospheric CO2

Started by peterwadeuk

2 Replies
5114 Views
Last post 18/06/18 16:47
by peterwadeuk
I meet some problem in my transport case

Started by wiki70170

3 Replies
5360 Views
Last post 30/05/18 17:40
by dlparkhurst
Unknown source of Na concentration during Batch reaction

Started by c.Jefferies

4 Replies
5919 Views
Last post 24/05/18 15:53
by c.Jefferies
Concept of a column experiment in PhreeqC

Started by Hydroman

2 Replies
7695 Views
Last post 26/04/18 23:04
by dlparkhurst
Time-dependent BC

Started by daliagrig

2 Replies
7947 Views
Last post 24/04/18 08:08
by daliagrig
C-14 sparging by CO2 injection

Started by DivyeshTrivedi

3 Replies
5131 Views
Last post 16/01/18 15:38
by dlparkhurst
(CO2)2

Started by nguyenp123

2 Replies
4669 Views
Last post 15/11/17 12:18
by nguyenp123
Mass balance GAS_PHASE Equilibrium (Ntg)

Started by Olivier

4 Replies
5880 Views
Last post 27/10/17 10:09
by Olivier
GoldSim and Phreeqc?

Started by Charlie

0 Replies
3941 Views
Last post 04/10/17 14:11
by Charlie
NaClO4 as background electrolyte

Started by njordan

5 Replies
7144 Views
Last post 19/06/17 14:45
by dlparkhurst
Conceptual model of mineral dissolution

Started by peterwadeuk

1 Replies
4779 Views
Last post 30/04/17 19:44
by dlparkhurst
Impact of organics

Started by Alexey

2 Replies
5030 Views
Last post 15/04/17 17:05
by Alexey
Equilibrium phases for more than one solution?

Started by Jerry

1 Replies
4733 Views
Last post 29/03/17 15:30
by dlparkhurst
Atmospheric carbonation concrete

Started by Pak

1 Replies
4523 Views
Last post 14/03/17 23:38
by dlparkhurst
How can I get the value of pe in Solution ?

Started by Wang

1 Replies
4788 Views
Last post 07/03/17 19:12
by dlparkhurst
Duplicating IPhreeqcCOM objects in MatLab

Started by petyr

2 Replies
5320 Views
Last post 06/03/17 22:35
by dlparkhurst
on serpentinization

Started by w1nterfell

17 Replies
15202 Views
Last post 15/02/17 17:22
by cchristophi
Water speciation fixing pH and [CO2(aq)]

Started by Jicé

1 Replies
5221 Views
Last post 06/12/16 17:06
by dlparkhurst
Question about the Solid State Diffusion

Started by snjaykdubey

1 Replies
4829 Views
Last post 30/11/16 16:40
by dlparkhurst
Mining related Groundwater evolution

Started by rapheul

7 Replies
7592 Views
Last post 23/09/16 15:47
by rapheul
calculate a predominant plot using my own database

Started by gelent

2 Replies
5717 Views
Last post 06/06/16 07:02
by gelent
Effects of temperature on pH

Started by mouseatwork18

1 Replies
5095 Views
Last post 06/05/16 15:54
by dlparkhurst
Charged water turning into pure water

Started by Jicé

1 Replies
5439 Views
Last post 16/02/16 19:13
by dlparkhurst
Using IPhreeQC COM Module with matlab

Started by paznativ

2 Replies
6829 Views
Last post 25/06/15 12:39
by paznativ
Chemical inhibitor interactions with reservoir rock

Started by Buddies2013

1 Replies
5413 Views
Last post 07/06/15 17:48
by Tom
Columns experiments

Started by adrianosbz

5 Replies
10375 Views
Last post 22/03/15 19:55
by dlparkhurst
Modeling a closed system with a gas phase at elevated T

Started by mvoigt

1 Replies
5995 Views
Last post 02/02/15 16:52
by dlparkhurst
Input ranges

Started by Model1

3 Replies
7123 Views
Last post 21/12/14 03:57
by dlparkhurst
Saline aquifer investigation

Started by Charlie

8 Replies
10633 Views
Last post 01/06/14 15:03
by Carla
Specifying Si in SOLUTION - Si vs SiO2

Started by Tom

2 Replies
7268 Views
Last post 30/04/14 09:46
by Tom
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