Hey, I'm a new one to learn use GWB to reproduce results of Michael Essington(2017), Adsorption of Antimonate by Kaolinite, especially the part of antimony and phosphate.
There are several questions.
1) As for SiO2(aq), what should I deal with this entry? I have swapped Al3+ to kaolinite in 10g/L. But I don't know how to set a concentration for SiO2. I tried to set a ratio of 1 for SiO2:Al3+, is it right?
2) And when I run the program, such problems would occur.
Solving for initial system.
Swapping >AlOH2+ in for >AlOH
Swapping >SiO- in for >SiOH
Newton-Raphson didn't converge after 999 iterations, max residual = 1, Xi = 0.0000
Largest residual(s):
Resid Resid/Totmol Cbasis
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>SiO- 215.3 1 3.539e-09
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3)So, I tried to delete the >AlO- or >SiO- from my sorbing surface dataset and ran it again, which could get a Gtplot, but it seemed to take K+ and NO3- as main sorbate. And the figure was totally different from one of ME.
I have attached my dataset and reaction data. I will appreciate if anyone could take a look. Thanks a lot.
P+0.01KNO3.rea Kaolinite-P.sdat