The pH dependency of uranium species

An acid mine water mixes downstream of a mine with groundwater of the following chemical composition (Table 33). 

How do the uranium species change Which species predominate at which pH value What are the effects of the change in uranium species concerning processes of transport and sorption  

Note The PHREEQC key word for the mixing of two waters is MIX. Here you have to enter the number of the solution and the percentage, to which the solution contributes to the mixture. Assuming a mixture of 25 % from solution 1 and 75 % from solution 2 may be expressed in the one or the other form  

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