Processes > Surface Complexation

Modeling linear sorption using phreeqc

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taa18:
How can I model linear sorption using phreeqc? I am trying to model alkali uptake by calcium silicate hydrate phases. Datawise I have the partitioning coefficient and I want to tell the software to take the alkali concentration from solution composition to calculate the uptake.

dlparkhurst:
PHREEQC was designed to use DDL surface complexation, but it is possible to define linear sorption. Look at example 19 in the Version 3 user's manual. It's a little awkward, but doable.

taa18:
Okay, thank you so much!

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