Hello David, some days ago we were in contact about the database llnl.dat. Now, we have some problems modelling analyses of waters, which were in contact with steel slags regarding species distribution. I attached 3 of these analyses which have nearly the same composition (CH1A, CH3A, CH4A). However, two of these analyses (CH3A and CH4A) do not get convergence. We have just checked ion balance and it's ok. So what's wrong with these analyses, since CH1A can be modelled without problems ? With regards, Bernd
TITLE Ch SOLUTION LDS 1 A units mg/l pH 6.21 pe 3.65 temp 23.2 Ca 355.13 Mg 12.07 Na 0.83 K 0.69 Fe 27.01 Al 0.33 Cr 0.000055 Mo 0.01963 V 0.07936 Alkalinity 1291.17 as HCO3 S(6) 4.60 as SO4 N(5) 0.46 as NO3 F 0.55 Cl 1.04 END
TITLE Ch SOLUTION EOS 3A units mg/l pH 6.3 pe 4.26 temp 22.6 Ca 276.92 Mg 11.16 Na 2.17 K 0.54 Fe 10.27 Al 0.50 Cr 0.000055 Mo 0.02343 V 0.10706 Alkalinity 1077 as HCO3 S(6) 4.39 as SO4 N(5) 0.54 as NO3 F 0.04 Cl 0.99 END
TITLE Ch SOLUTION EOS 4A units mg/l pH 6.18 pe 4.18 temp 23.1 Ca 223.86 Mg 8.39 Na 1.96 K 1.62 Fe 34.84 Al 0.67 Cr 0.000055 Mo 0.01368 V 0.02986 Alkalinity 851.97 as HCO3 S(6) 2.56 as SO4 N(5) 0.52 as NO3 F 0.32 Cl 0.89 END
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