Hello, My name is Samuel Mutiti with Miami University, Oxfrod Ohio. I am trying to run a simple speciation program using the win version of phreeqc that I downloaded from your website. The problem I am having is that I am not sure of how to write the program. So far I have been using the webphreeq at http://www.ndsu.nodak.edu/webphreeq/. The only problem with this webphreeq is that we are not getting the sulphide phases precipitating when we expect to see sulphides. The other problem is that its limited on what you can enter e.g you cannot enter both sulphide and sulphate concentrations at the same time. I don't trust the our pe values so I would like to let the program compute them using the sulphide/sulphate ratios. I am attaching one of the outputs from for lake Fryxcell (which shows the inputs). I am very thankful for your time and help. Best Regards Samuel Mutiti Miami University. IES Tel: (home) 513 6647702 Tel: (work) 513 529 3227 mutitis@xxxxxxxxxx
WEB-PHREEQ: Output for a Single Solution Using Simple Speciation and the WATEQ4F DatabaseDatabase file: wateq4f.dat
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Reading data base.
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SOLUTION_MASTER_SPECIES
SOLUTION_SPECIES
PHASES
EXCHANGE_MASTER_SPECIES
EXCHANGE_SPECIES
SURFACE_MASTER_SPECIES
SURFACE_SPECIES
RATES
END
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Reading input data for simulation 1.
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TITLE 17M FRYXCELL
SOLUTION 1
pH 7.77
temp 0
pe 12.43
density 1
units mmol/L
Al .000320
Cd .0000000
Ca 3.49
C 26.011 as HCO3
Cl 129.75
Cu(2) .0000
Fe(2) .000766
Mg 13.99
Mn(2) .00324
K 4.86
Na 117.44
S 1.20 as HS-
END
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TITLE
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17M FRYXCELL
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Beginning of initial solution calculations.
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Initial solution 1.
-----------------------------Solution composition------------------------------
Elements Molality Moles
Al 3.231e-07 3.231e-07
C 2.626e-02 2.626e-02
Ca 3.524e-03 3.524e-03
Cl 1.310e-01 1.310e-01
Fe(2) 7.734e-07 7.734e-07
K 4.907e-03 4.907e-03
Mg 1.413e-02 1.413e-02
Mn(2) 3.271e-06 3.271e-06
Na 1.186e-01 1.186e-01
S 1.212e-03 1.212e-03
----------------------------Description of solution----------------------------
pH = 7.770
pe = 12.430
Activity of water = 0.995
Ionic strength = 1.728e-01
Mass of water (kg) = 1.000e+00
Total alkalinity (eq/kg) = 2.538e-02
Total CO2 (mol/kg) = 2.626e-02
Temperature (deg C) = 0.000
Electrical balance (eq) = -1.470e-05
Percent error, 100*(Cat-|An|)/(Cat+|An|) = -0.00
Iterations = 9
Total H = 1.110374e+02
Total O = 5.558877e+01
----------------------------Distribution of species----------------------------
Log Log Log
Species Molality Activity Molality Activity Gamma
OH- 8.799e-08 6.694e-08 -7.056 -7.174 -0.119
H+ 2.100e-08 1.698e-08 -7.678 -7.770 -0.092
H2O 5.551e+01 9.950e-01 -0.002 -0.002 0.000
Al 3.231e-07
Al(OH)4- 3.170e-07 2.412e-07 -6.499 -6.618 -0.119
Al(OH)2+ 3.417e-09 2.600e-09 -8.466 -8.585 -0.119
Al(OH)3 2.414e-09 2.512e-09 -8.617 -8.600 0.017
AlOH+2 2.153e-10 7.212e-11 -9.667 -10.142 -0.475
Al+3 8.095e-12 6.911e-13 -11.092 -12.160 -1.069
AlSO4+ 5.646e-13 4.295e-13 -12.248 -12.367 -0.119
Al(SO4)2- 4.403e-15 3.350e-15 -14.356 -14.475 -0.119
AlHSO4+2 1.697e-21 5.685e-22 -20.770 -21.245 -0.475
C(-4) 0.000e+00
CH4 0.000e+00 0.000e+00 -136.604 -136.587 0.017
C(4) 2.626e-02
HCO3- 2.278e-02 1.736e-02 -1.642 -1.760 -0.118
MgHCO3+ 1.201e-03 9.138e-04 -2.920 -3.039 -0.119
CO2 1.079e-03 1.123e-03 -2.967 -2.950 0.017
NaHCO3 8.375e-04 8.715e-04 -3.077 -3.060 0.017
CaHCO3+ 1.713e-04 1.303e-04 -3.766 -3.885 -0.119
CO3-2 7.133e-05 2.404e-05 -4.147 -4.619 -0.472
MgCO3 7.023e-05 7.308e-05 -4.153 -4.136 0.017
CaCO3 3.576e-05 3.721e-05 -4.447 -4.429 0.017
NaCO3- 1.326e-05 1.009e-05 -4.877 -4.996 -0.119
MnHCO3+ 8.976e-07 6.829e-07 -6.047 -6.166 -0.119
MnCO3 8.100e-07 8.429e-07 -6.092 -6.074 0.017
FeHCO3+ 2.928e-07 2.228e-07 -6.533 -6.652 -0.119
FeCO3 7.112e-08 7.400e-08 -7.148 -7.131 0.017
Ca 3.524e-03
Ca+2 3.270e-03 1.136e-03 -2.486 -2.945 -0.459
CaHCO3+ 1.713e-04 1.303e-04 -3.766 -3.885 -0.119
CaSO4 4.727e-05 4.918e-05 -4.325 -4.308 0.017
CaCO3 3.576e-05 3.721e-05 -4.447 -4.429 0.017
CaOH+ 1.452e-08 1.105e-08 -7.838 -7.957 -0.119
CaHSO4+ 5.121e-12 3.896e-12 -11.291 -11.409 -0.119
Cl 1.310e-01
Cl- 1.310e-01 9.577e-02 -0.883 -1.019 -0.136
MnCl+ 2.264e-07 1.722e-07 -6.645 -6.764 -0.119
FeCl+ 2.230e-08 1.697e-08 -7.652 -7.770 -0.119
MnCl2 6.919e-09 7.200e-09 -8.160 -8.143 0.017
MnCl3- 2.496e-10 1.899e-10 -9.603 -9.721 -0.119
Fe(2) 7.734e-07
Fe+2 3.831e-07 1.283e-07 -6.417 -6.892 -0.475
FeHCO3+ 2.928e-07 2.228e-07 -6.533 -6.652 -0.119
FeCO3 7.112e-08 7.400e-08 -7.148 -7.131 0.017
FeCl+ 2.230e-08 1.697e-08 -7.652 -7.770 -0.119
FeSO4 3.728e-09 3.879e-09 -8.429 -8.411 0.017
FeOH+ 4.067e-10 3.094e-10 -9.391 -9.509 -0.119
Fe(OH)2 1.381e-14 1.437e-14 -13.860 -13.842 0.017
FeHSO4+ 5.784e-16 4.400e-16 -15.238 -15.357 -0.119
Fe(OH)3- 3.146e-17 2.393e-17 -16.502 -16.621 -0.119
Fe(HS)2 0.000e+00 0.000e+00 -268.422 -268.405 0.017
Fe(HS)3- 0.000e+00 0.000e+00 -401.481 -401.600 -0.119
H(0) 0.000e+00
H2 0.000e+00 0.000e+00 -43.449 -43.432 0.017
K 4.907e-03
K+ 4.901e-03 3.583e-03 -2.310 -2.446 -0.136
KSO4- 5.755e-06 4.378e-06 -5.240 -5.359 -0.119
Mg 1.413e-02
Mg+2 1.271e-02 4.677e-03 -1.896 -2.330 -0.434
MgHCO3+ 1.201e-03 9.138e-04 -2.920 -3.039 -0.119
MgSO4 1.461e-04 1.520e-04 -3.835 -3.818 0.017
MgCO3 7.023e-05 7.308e-05 -4.153 -4.136 0.017
MgOH+ 1.113e-07 8.465e-08 -6.954 -7.072 -0.119
Mn(2) 3.271e-06
Mn+2 1.318e-06 4.414e-07 -5.880 -6.355 -0.475
MnHCO3+ 8.976e-07 6.829e-07 -6.047 -6.166 -0.119
MnCO3 8.100e-07 8.429e-07 -6.092 -6.074 0.017
MnCl+ 2.264e-07 1.722e-07 -6.645 -6.764 -0.119
MnSO4 1.255e-08 1.306e-08 -7.901 -7.884 0.017
MnCl2 6.919e-09 7.200e-09 -8.160 -8.143 0.017
MnCl3- 2.496e-10 1.899e-10 -9.603 -9.721 -0.119
MnOH+ 9.448e-11 7.188e-11 -10.025 -10.143 -0.119
Mn(OH)3- 1.849e-18 1.407e-18 -17.733 -17.852 -0.119
Na 1.186e-01
Na+ 1.176e-01 8.928e-02 -0.930 -1.049 -0.120
NaHCO3 8.375e-04 8.715e-04 -3.077 -3.060 0.017
NaSO4- 1.385e-04 1.054e-04 -3.859 -3.977 -0.119
NaCO3- 1.326e-05 1.009e-05 -4.877 -4.996 -0.119
O(0) 9.053e-15
O2 4.527e-15 4.710e-15 -14.344 -14.327 0.017
S(-2) 0.000e+00
HS- 0.000e+00 0.000e+00 -135.113 -135.232 -0.119
H2S 0.000e+00 0.000e+00 -135.667 -135.650 0.017
S6-2 0.000e+00 0.000e+00 -137.060 -137.343 -0.283
S5-2 0.000e+00 0.000e+00 -137.369 -137.681 -0.312
S4-2 0.000e+00 0.000e+00 -137.594 -137.942 -0.348
S-2 0.000e+00 0.000e+00 -140.717 -141.192 -0.475
S3-2 0.000e+00 0.000e+00 -141.049 -141.441 -0.393
S2-2 0.000e+00 0.000e+00 -142.320 -142.755 -0.435
Fe(HS)2 0.000e+00 0.000e+00 -268.422 -268.405 0.017
Fe(HS)3- 0.000e+00 0.000e+00 -401.481 -401.600 -0.119
S(6) 1.212e-03
SO4-2 8.740e-04 2.799e-04 -3.058 -3.553 -0.494
MgSO4 1.461e-04 1.520e-04 -3.835 -3.818 0.017
NaSO4- 1.385e-04 1.054e-04 -3.859 -3.977 -0.119
CaSO4 4.727e-05 4.918e-05 -4.325 -4.308 0.017
KSO4- 5.755e-06 4.378e-06 -5.240 -5.359 -0.119
MnSO4 1.255e-08 1.306e-08 -7.901 -7.884 0.017
FeSO4 3.728e-09 3.879e-09 -8.429 -8.411 0.017
HSO4- 3.749e-10 2.852e-10 -9.426 -9.545 -0.119
CaHSO4+ 5.121e-12 3.896e-12 -11.291 -11.409 -0.119
AlSO4+ 5.646e-13 4.295e-13 -12.248 -12.367 -0.119
Al(SO4)2- 4.403e-15 3.350e-15 -14.356 -14.475 -0.119
FeHSO4+ 5.784e-16 4.400e-16 -15.238 -15.357 -0.119
AlHSO4+2 1.697e-21 5.685e-22 -20.770 -21.245 -0.475
------------------------------Saturation indices-------------------------------
Phase SI log IAP log KT
Al(OH)3(a) -1.43 11.14 12.58 Al(OH)3
AlumK -16.08 -21.74 -5.65 KAl(SO4)2:12H2O
Alunite -1.40 0.57 1.97 KAl3(SO4)2(OH)6
Anhydrite -2.13 -6.50 -4.37 CaSO4
Aragonite 0.65 -7.56 -8.22 CaCO3
Artinite -5.28 6.25 11.53 MgCO3:Mg(OH)2:3H2O
Basaluminite 2.78 25.48 22.70 Al4(OH)10SO4
Birnessite 5.98 49.58 43.60 MnO2
Boehmite 0.67 11.15 10.47 AlOOH
Brucite -5.45 13.21 18.66 Mg(OH)2
Calcite 0.82 -7.56 -8.38 CaCO3
CH4(g) -133.95 -181.75 -47.80 CH4
CO2(g) -1.84 -20.16 -18.32 CO2
Diaspore 2.61 11.15 8.53 AlOOH
Dolomite 1.94 -14.51 -16.46 CaMg(CO3)2
Dolomite(d) 1.28 -14.51 -15.80 CaMg(CO3)2
Epsomite -3.57 -5.90 -2.33 MgSO4:7H2O
FeS(ppt) -130.44 -172.04 -41.60 FeS
Gibbsite 1.50 11.14 9.64 Al(OH)3
Gypsum -1.89 -6.50 -4.62 CaSO4:2H2O
H2(g) -40.40 -40.40 0.00 H2
H2O(g) -2.22 -0.00 2.22 H2O
H2S(g) -134.96 -180.68 -45.72 H2S
Halite -3.59 -2.07 1.52 NaCl
Hausmannite 0.16 67.95 67.78 Mn3O4
Huntite -0.17 -28.41 -28.24 CaMg3(CO3)4
Hydromagnesite -9.34 -14.60 -5.26 Mg5(CO3)4(OH)2:4H2O
Jurbanite -4.72 -7.95 -3.23 AlOHSO4
Mackinawite -129.71 -172.04 -42.33 FeS
Magnesite 0.67 -6.95 -7.62 MgCO3
Manganite 4.04 29.38 25.34 MnOOH
Melanterite -7.89 -10.46 -2.57 FeSO4:7H2O
Mirabilite -3.29 -5.67 -2.39 Na2SO4:10H2O
MnCl2:4H2O -9.95 -8.40 1.54 MnCl2:4H2O
MnS(Green) -138.01 -171.50 -33.49 MnS
MnSO4 -13.62 -9.91 3.71 MnSO4
Nahcolite -2.01 -13.44 -11.43 NaHCO3
Natron -4.37 -6.74 -2.37 Na2CO3:10H2O
Nesquehonite -1.72 -6.96 -5.23 MgCO3:3H2O
Nsutite 7.02 49.58 42.56 MnO2
O2(g) -11.49 80.80 92.29 O2
Portlandite -12.29 12.59 24.88 Ca(OH)2
Pyrite -217.72 -312.32 -94.60 FeS2
Pyrochroite -6.02 9.18 15.20 Mn(OH)2
Pyrolusite 3.83 49.58 45.75 MnO2
Rhodochrosite 0.06 -10.97 -11.03 MnCO3
Rhodochrosite(d) -0.58 -10.97 -10.39 MnCO3
Siderite -0.79 -11.51 -10.72 FeCO3
Siderite(d)(3) -1.06 -11.51 -10.45 FeCO3
Sulfur -100.78 -140.28 -39.51 S
Thenardite -5.51 -5.65 -0.14 Na2SO4
Thermonatrite -7.03 -6.72 0.31 Na2CO3:H2O
Trona -9.94 -20.16 -10.22 NaHCO3:Na2CO3:2H2O
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End of simulation.
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Reading input data for simulation 2.
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End of run.
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No memory leaks
Title: WEB-PHREEQ: Input Form for a Single Solution Using Simple Speciation and the WATEQ4F Database
Step 3
Select what type of output you wish to have WEB-PHREEQ generate.
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