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 ------------------ Reading data base. ------------------ SOLUTION_MASTER_SPECIES SOLUTION_SPECIES PHASES EXCHANGE_MASTER_SPECIES EXCHANGE_SPECIES SURFACE_MASTER_SPECIES SURFACE_SPECIES RATES END ------------------------------------ Reading input data for simulation 1. ------------------------------------ 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 ----- TITLE ----- 17M FRYXCELL ------------------------------------------- Beginning of initial solution calculations. ------------------------------------------- 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 ------------------ End of simulation. ------------------ ------------------------------------ Reading input data for simulation 2. ------------------------------------ ----------- End of run. ----------- No memory leaksTitle: WEB-PHREEQ: Input Form for a Single Solution Using Simple Speciation and the WATEQ4F Database
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