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184 lines
3.3 KiB
Plaintext
184 lines
3.3 KiB
Plaintext
TITLE Example 8.--Sorption of zinc on hydrous
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iron oxides.
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SURFACE_SPECIES
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Hfo_sOH + H+ = Hfo_sOH2+
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log_k 7.18
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Hfo_sOH = Hfo_sO- + H+
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log_k -8.82
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Hfo_sOH + Zn+2 = Hfo_sOZn+ + H+
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log_k 0.66
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Hfo_wOH + H+ = Hfo_wOH2+
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log_k 7.18
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Hfo_wOH = Hfo_wO- + H+
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log_k -8.82
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Hfo_wOH + Zn+2 = Hfo_wOZn+ + H+
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log_k -2.32
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SURFACE 1
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Hfo_sOH 5e-6 600. 0.09
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Hfo_wOH 2e-4
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SOLUTION 1
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-units mmol/kgw
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pH 8.0
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Zn 0.0001
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Na 100. charge
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N(5) 100.
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SOLUTION 2
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-units mmol/kgw
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pH 8.0
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Zn 0.1
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Na 100. charge
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N(5) 100.
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USE solution none
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#
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# Model definitions
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#
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PHASES
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Fix_H+
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H+ = H+
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log_k 0.0
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END
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#
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# Zn = 1e-7
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#
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SELECTED_OUTPUT
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-file ex8.sel
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-molalities Zn+2 Hfo_wOZn+ Hfo_sOZn+
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.0 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.25 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.5 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.75 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.0 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.25 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.5 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.75 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.0 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.25 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.5 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.75 NaOH 10.0
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END
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USE solution 1
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -8.0 NaOH 10.0
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END
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#
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# Zn = 1e-4
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#
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.0 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.25 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.5 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -5.75 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.0 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.25 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.5 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -6.75 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.0 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.25 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.5 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -7.75 NaOH 10.0
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END
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USE solution 2
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USE surface 1
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EQUILIBRIUM_PHASES 1
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Fix_H+ -8.0 NaOH 10.0
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END
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