Figure 11.23. Static adsorption results for several anionic surfactants. Top: crushed carbonate
rock. Bottom: crushed sandstone rock [Casteel and Djabbarah, 1988].
Figure 11.24 illustrates results from the adsorption of cationic surfactants on crushed dolomite
and calcite [Tabatabal et al., 1993]. Under these conditions, the levels of adsorption associated
with the cationic surfactant cetylpyridinium chloride were significantly less than the adsorption
that occurred with the anionic surfactant sodium dodecyl sulfate.
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