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PHREEQC is a computer program written in the C pwgranuning language that is designed to perform a wide variety of aqueous geochemical calculations.

User's guide to PHREEQC, a computer program for speciation, reaction-path, advective-transport, and inverse geochemical calculations

Even a moderate knowledge of one of the supported programming languages allows more efficient use of PHREEQC than the traditional loosely coupled approach. The IPhreeqc module facilitates the design of coupled applications and significantly reduces run times. The comparisons show that IPhreeqc offers a more powerful and simpler approach for incorporating PHREEQC calculations into transport models and other applications that need to perform PHREEQC calculations. The study compares performance, quantifies effort, and evaluates lines of code and the complexity of the design. This study compares simulations programmed in C++ and Python that are tightly coupled with IPhreeqc modules to the traditional simulations that are loosely coupled to PHREEQC. Input and calculations can be specified through internally programmed strings, and all data exchange between an application and the module can occur in computer memory. IPhreeqc eliminates most of this effort by providing direct access to PHREEQC capabilities through a component object model (COM), a library, or a dynamically linked library (DLL). Traditionally, loose coupling of PHREEQC with other applications required methods to create PHREEQC input files, start external PHREEQC processes, and process PHREEQC output files. Geological Survey geochemical model PHREEQC.

The new IPhreeqc module provides an application programming interface (API) to facilitate coupling of other codes with the U.S. Programming PHREEQC calculations with C++ and Python a comparative studyĬharlton, Scott R. The interface is written in Visual Basic and will run on personal computers under the Windows(3.1), Windows95, and WindowsNT operating systems. Interactive access to all of the capabilities of PHREEQC is available with PhreeqcI. PHREEQC is a multipurpose geochemical program that can perform speciation, inverse, reaction-path, and 1D advective reaction-transport modeling. PhreeqcI provides the capability to generate and edit input data files, run simulations, and view text files containing simulation results, all within the framework of a single interface. PhreeqcI is a Windows-based graphical user interface for the geochemical computer program PHREEQC. PHREEQCI a graphical user interface for the geochemical computer program PHREEQCĬharlton, Scott R.

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