Transport and Cation Exchange

• Parabolic/ComponentTransport/ReactiveTransport/CationExchange/exchange.prj

Overview

This benchmark simulates the chemical composition of the effluent from a column containing a cation exchanger (Example 11 in the PHREEQC 3 documentation). The following setup is used for the simulation:

Full details of the model setup and parameters are given in the PHREEQC3 example (consulted MAY-2021):

https://water.usgs.gov/water-resources/software/PHREEQC/documentation/phreeqc3-html/phreeqc3-73.htm#50593807_46434

The benchmark uses the ComponentTransport process in OGS-6 coupled with the IPhreeqc software (Parkhurst et al. 2013). The results show good agreement between codes. More details about the implementation of the ComponentTransport process in OGS-6 can be found in HC-Process.pdf .

• Parabolic/ComponentTransport/ReactiveTransport/CationExchange/exchange.prj

References

Parkhurst, D.L., Appelo, C.A.J., 2013. Description of Input and Examples for PHREEQC Version 3 - a Computer Program for Speciation, Batch-reaction, One-dimensional Transport, and Inverse Geochemical Calculations.