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60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
TITLE Example 13A.--1 mmol/l NaCl/NO3 enters column with stagnant zones.
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Implicit definition of first-order exchange model.
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SOLUTION 0 # 1 mmol/l NaCl
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units mmol/l
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pH 7.0
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pe 13.0 O2(g) -0.7
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Na 1.0 # Na has Retardation = 2
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Cl 1.0 # Cl has Retardation = 1, stagnant exchange
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N(5) 1.0 # NO3 is conservative
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# charge imbalance is no problem ...
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END
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SOLUTION 1-41 # Column with KNO3
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units mmol/l
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pH 7.0
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pe 13.0 O2(g) -0.7
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K 1.0
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N(5) 1.0
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EXCHANGE 1-41
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-equil 1
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X 1.e-3
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EXCHANGE_SPECIES # For linear exchange, make KX exch. coeff. equal to NaX
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K+ + X- = KX
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log_k 0.0
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-gamma 3.5 0.015
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END
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TRANSPORT
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-cells 20
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-shifts 5
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-flow_d forward
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-timest 3600
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-bcon flux flux
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-diffc 0.0
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-length 0.1
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-disp 0.015
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-stag 1 6.8e-6 0.3 0.1
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# 1 stagnant layer^, ^alpha, ^theta(m), ^theta(im)
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PRINT
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-reset false
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-echo true
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END
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SOLUTION 0 # Original solution reenters
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units mmol/l
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pH 7.0
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pe 13.0 O2(g) -0.7
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K 1.0
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N(5) 1.0
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TRANSPORT
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-shifts 10
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-punch_frequency 10
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-punch_cells 1-20
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SELECTED_OUTPUT
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-file ex13a.sel
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-reset false
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-solution
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-distance true
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USER_PUNCH
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-head Cl_mmol Na_mmol
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10 PUNCH TOT("Cl")*1000, TOT("Na")*1000
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END
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