Intra-particle migration of mercury in granular polysulfide-rubber-coated activated carbon (PSR-AC)

► Mercuric ions can migrate into the interior of a PSR-AC particle. ► Intraparticle transport of mercuric ion within PSR-AC involves chemical reactions. ► The chemical reactions retard the intraparticle transport rate of mercuric ion. ► A kinetic sorption model approximates the overall mercury transport rate.