Cation exchange and surface complex input files

Hello everyone,

I'm simulating the cation exchange and surface complex between Eu+3 and clay, and I found only the 8.2 problem 2 and 8.10 problem 10 in TOUGHREACT v2.0 manual including the that information. I am still not very clear about them. So I was wondering if somebody can send me a set of input files concerning cation exchange and surface complex if you have done them ?

Thanks so much,

Lang