The geochemistry module
The geochemistry module is designed to solve geochemical models. The capabilities include:
equilibrium aqueous systems
redox disequilibrium
sorption and surface complexation
kinetics
all these combined with fluid and heat transport
The geochemistry module is designed to interface easily with the porous-flow module so that complicated reactive transport scenarios can be studied.

Figure 1: Temperature, porosity, pH and free volume of Quartz after 90 days of injection in a 3D reactive-transport model.