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Department of Geosciences
North Dakota State University
WEB-PHREEQ:
AQUEOUS GEOCHEMICAL MODELING
NDSU

Welcome to WEB-PHREEQ, a WWW implementation of the aqueous geochemical modeling program PHREEQC by David Parkhurst of the U.S.G.S.

Step 1
Choose simple speciation or advanced, single solution or a mix of two solutions, and which of the three available databases you wish to use.

Option: Description:


Choose whether you wish to use simple speciation, which is the default, or whether you prefer to use advanced speciation.


Choose whether you wish to do calculations for a single solution, or whether to mix two solutions using phreeqc's MIX keyword.



Choose which of the three available databases you wish to use in your calculations: phreeqc, wateq4f, or minteq.

Documentation and Additional Information

What is aqueous geochemical modeling?
How to use WEB-PHREEQ
Frequently Asked Questions about WEB-PHREEQ

B. Saini-Eidukat
North Dakota State University
Geochemistry
Geology 428/628

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