Define PHREEQC solutions for initial boundary conditions

This is the content of the file phreeqcrm/advect.pqi. It is taken from the PHREEQC input from example 11 from PHREEQC-3 documentation [Parkhurst and Appelo, 2013].

SOLUTION 0  CaCl2
   # Inflow at boundary
        units            mmol/kgw
        temp             25.0
        pH               7.0     charge
        pe               12.5    O2(g)   -0.68
        Ca               0.6
        Cl               1.2
        Tracer           0.5
SOLUTION 1
    # Initial solution
        units            mmol/kgw
        temp             25.0
        pH               7.0     charge
        pe               12.5    O2(g)   -0.68
        Na               1.0
        K                0.2
        N(5)             1.2
        Tracer           2.0
END
EXCHANGE 1
    X 0.0011
    -equilibrate 1
END

The solution numbers are important and will be used for the spatial distribution of the initial concentrations and exchanges as well as the concentration of all boundary conditions that provide concentration values.