Hi I wonder if you could please help. I am trying to model a column expt using PHREEQC The column is a mixture of sand and clay ( mixtures of illite, kaolinite, chlorite or montmorillonite) with known ionic exchange parameters. I am adding to this a binary chloride salt mixture and want to model the breakthrough curves using exchange and transport keywords. I have tried using the solid_solutions keyword to set the initial conditions in the column but am unable to do so. My only other thought I guess is to set solution 1-x using the formula for the clays. Could you tell me if I am on the right track, sorry but I am new to this type of modelling and I am trying to learn as I work through so any help would be greatly received Thankyou for your time Karen KAREN. E. PARKER Hydrogeology Research Group School of Earth Sciences Aston Webb Building The University of Birmingham Edgbaston Birmingham B15 2TT United Kingdom Tel: +44 (0)121 4144407 Fax: +44 (0)121 4144942 Email: K.E.Parker@xxxxxxxxxx
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