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Surface Complexation Experiment

Uranium Surface Complexation

PhreeqC Code

TITLE Redox Reaction with transport

SOLUTION 0
        units   mmol/L
        pH      7.0
        temp    25.0
        Ca	 0.1
        Mg	 0.1
	  Na	 0.1 
        K	 0.11
        Alkalinity 0.4 as HCO3
        S(6) 0.05 as SO4
        Cl	 0.1 
        Zn   0.01

SOLUTION 1-100
        units   ppm
        pH      8.22
        temp    25.0                  
        S(6) 3.3 as SO4
	  N(5) 0.58 as NO3
        P(5) 0.1
        Cl	 0.22 
	  Na	 0.38 
        K	 0.36
        Ca	 0.20
        Mg	 0.30
        Alkalinity 0.68 as HCO3

TRANSPORT 
   -cells  100
   -shifts 100
   -flow_direction  forward 
   -time_step       86400
   -boundary_conditions   flux  flux 
   -lengths         100*100 
   -dispersivities  100*0.1
   -punch_cells	  1-100
   -punch_frequency 50

SELECTED_OUTPUT 
        -file ex26t.txt 
   	  -step true
        -pH true
        -pe true
        -reaction true
	  -temperature true
        -alkalinity true
        -si Calcite 
        -totals Ca Na Cl S(6) N(5) Na K Zn
        -molalities Ca+2 Na+ Cl- 
END