PHREEQC Users | Resource for geochemists

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Subject / Started by	Replies / Views	Last post
Preventing Mineral Dissolution/Precipitation Started by ztwatson	50 Replies 59440 Views	27/01/15 22:52 by ztwatson
Inverse Modeling: Mixing Fractions and Mole Transfer Started by avadhoot	3 Replies 9199 Views	23/11/25 01:06 by avadhoot
Surface species in a inverse mass model Started by joserevueltas94	1 Replies 18910 Views	01/04/25 05:01 by dlparkhurst
How much Ca(OH)2 was added for changing pH Started by MichaelZ20	2 Replies 10747 Views	09/03/25 08:06 by MichaelZ20
Inverse modelling of nitrogen species in soils irrigated with wastewater Started by joserevueltas94	1 Replies 9699 Views	21/02/25 22:11 by dlparkhurst
Inverse modelling question Started by joserevueltas94	1 Replies 9891 Views	18/02/25 19:43 by dlparkhurst
How to solve "inequality not satisfied for Mg eps+" Started by Doyoung	1 Replies 9549 Views	10/02/25 17:43 by dlparkhurst
Query about calculation of Saturation Indices Started by sally.xiaosa.0212	21 Replies 22226 Views	09/11/24 01:04 by sally.xiaosa.0212
how to extract an element from the fluid Started by Jowitawl	8 Replies 14022 Views	25/06/24 11:35 by Jowitawl
Inverse modeling of Zn release in pure water Started by RadiantRocks23	7 Replies 13631 Views	29/05/24 01:31 by dlparkhurst
inverse modelling for batch leaching test at various pH Started by P.Merdy	2 Replies 9123 Views	16/05/24 09:33 by P.Merdy
Good sum of residuals and delta/uncertainty, but high maximum fractional error Started by Juan Sebastian	2 Replies 9984 Views	06/05/24 20:52 by Juan Sebastian
Mismatch between Phreeqc Interactive and Notpad using the same .pqi file Started by Juan Sebastian	2 Replies 9025 Views	04/05/24 00:38 by Juan Sebastian
Calculation of amount of precipitated minerals Started by mukherjeeindrani09	9 Replies 14086 Views	06/11/23 15:09 by dlparkhurst
Mix end precipitation Started by INZILLO	3 Replies 9579 Views	27/09/23 18:39 by dlparkhurst
Combination of INVERSE_MODELING and MIX Started by ViktoriaRfq	4 Replies 13251 Views	10/06/23 14:44 by dlparkhurst
Using chloride as a conservative tracer to define mixing proportions Started by pknappet	1 Replies 8387 Views	18/05/23 03:03 by dlparkhurst
Modelling isotope fractionation during evaporation Started by evansmanu	7 Replies 12410 Views	25/01/23 21:30 by dlparkhurst
How to find rocks related to water formation Started by Matsumoto	0 Replies 8223 Views	14/10/22 05:30 by Matsumoto
How to add Fertilizer formular in the Phreeqc.dat Database for Inverse modelling Started by evansmanu	26 Replies 20590 Views	02/08/22 22:47 by dlparkhurst
inverse modeling : interpretation and selection of optimal model Started by hyedy	0 Replies 8990 Views	27/06/22 09:26 by hyedy
Issue with Evaporation Started by evansmanu	13 Replies 15611 Views	02/12/21 15:46 by evansmanu
INVERSE_MODELING ERROR Started by Matsumoto	2 Replies 9225 Views	04/11/21 03:22 by Matsumoto
inverse modeling : default unit Started by hyedy	2 Replies 10340 Views	17/08/21 04:54 by hyedy
Input equation for Pyroxene and Hornblende in PhreeqC Started by evansmanu	5 Replies 10990 Views	30/05/21 19:38 by evansmanu
Residual errors and model uncertainty Started by evansmanu	2 Replies 10552 Views	17/05/21 10:27 by evansmanu
Inverse model/Silicate weathering/Springs Started by sandrablanco	1 Replies 9362 Views	18/01/21 23:52 by dlparkhurst
15n enrichment during nitrification in soils Started by lfhall	3 Replies 10663 Views	01/12/20 16:11 by dlparkhurst
Input of gaseous species Started by Franco Galarce	3 Replies 10451 Views	25/11/20 20:33 by dlparkhurst
Inverse Modeling, Large Uncertainty Started by toupis12	2 Replies 9125 Views	19/11/20 21:22 by toupis12
Does a linear combination of minimal models also present a possible model? Started by MichaelZ20	1 Replies 8463 Views	28/10/20 15:11 by dlparkhurst
Inverse modeling to obtain alteration mineralogy using geothermal fluid data Started by Franco Galarce	1 Replies 9142 Views	24/10/20 16:16 by dlparkhurst
Acid Mine Drainage Inverse Modeling Started by Loreto Martínez	2 Replies 10984 Views	08/05/20 18:15 by Loreto Martínez
Inverse Modelling - uncertainty errors Started by NannaG	1 Replies 10968 Views	04/03/19 17:21 by dlparkhurst
inverse modeling in saline system Started by Layali	1 Replies 9974 Views	26/02/19 16:07 by dlparkhurst
Inverse modelling for surface water in laterite terrain Started by Chinaechem	1 Replies 10116 Views	09/02/19 01:44 by dlparkhurst
"Unexchanging" Started by MichaelZ20	2 Replies 11133 Views	22/05/18 22:05 by MichaelZ20
Inverse model for conduit flow karst spring with unknown recharge Started by Grivia1	1 Replies 12563 Views	28/04/18 19:57 by dlparkhurst
Phase mole transfers Started by Scarlet	10 Replies 14568 Views	15/02/18 15:04 by Scarlet
Inverse modeling and only pH,Redox,Temperature on entry Started by Merlin66	1 Replies 9240 Views	18/10/17 17:28 by dlparkhurst
defining calcite with the same d13C twice, once dissolving and once precipitatin Started by MichaelZ20	3 Replies 10056 Views	16/10/17 07:57 by MichaelZ20
Aluminosilicates with Impurities Started by stewa184	1 Replies 10172 Views	22/06/17 20:29 by dlparkhurst
Inverse Modelling_Uncertainty issues and Mineral dissolution Started by rfembilejr	19 Replies 19324 Views	30/04/17 23:39 by rfembilejr
Inverse Modeling for a leaching study Started by BalabaJ	4 Replies 10964 Views	25/03/17 12:28 by BalabaJ
inverse model, silicate weathering, groundwater recharge Started by Brendan	11 Replies 17639 Views	03/02/17 16:13 by dlparkhurst
Inverse modelling with Seawater as input solution Started by rfembilejr	0 Replies 9710 Views	22/01/17 21:31 by rfembilejr
inverse modelling multiple processes Started by Mercury	1 Replies 9940 Views	11/12/15 16:54 by dlparkhurst
about example 17 Started by Mercury	3 Replies 10614 Views	07/12/15 14:45 by dlparkhurst
Inverse modeling using Cl and 18O only Started by MichaelZ20	11 Replies 15870 Views	05/06/15 16:28 by MichaelZ20
inverse modelling with silicate weathering Started by vivek vasudev	1 Replies 10440 Views	16/04/15 16:37 by dlparkhurst
Groundwater evolution with mixing Started by rudolff16	1 Replies 9963 Views	14/04/15 15:12 by dlparkhurst
inverse modelling with silicate weathering Started by vivek vasudev	1 Replies 9585 Views	08/04/15 15:26 by dlparkhurst
Basalt weathering Started by rudolff16	4 Replies 14372 Views	04/04/15 14:16 by rudolff16
Source rock deduction Started by rudolff16	9 Replies 15947 Views	01/04/15 08:24 by rudolff16
Using Iphreeqc modules for inversion Started by docla	1 Replies 10196 Views	06/03/15 23:32 by dlparkhurst
different inv model input (solution 1), exact same results....? Started by deso	1 Replies 13027 Views	19/01/15 21:50 by dlparkhurst
Inverse Modeling Started by rajeshrajenthran	2 Replies 14028 Views	27/11/14 04:32 by dlparkhurst
Inverse modelling using historic, limited data Started by jmdriscoll	2 Replies 16217 Views	06/11/14 18:11 by jmdriscoll
Contribution in Inverse modeling with Phreeqc Started by vcarucci	2 Replies 15506 Views	05/07/14 11:19 by Tom

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