title: Kinetics of phenanthrene desorption from activated carbons to water.
abstract: We determined the kinetics of phenanthrene desorption from three activated carbons to water using Tenax beads as an infinite sink for organic compounds in water. Desorption kinetic data very well fitted a biphasic kinetic model based on the presence of two different adsorption sites, viz. low-energy sites and high-energy sites. Rate constants for desorption to water from these two types of sites in the three activated carbons did not reveal a relation with activated carbon grain size. These rate constants were comparable to those for desorption of various organic compounds from hard carbon in various sediments.
authors.affiliation: Deltares, P.O. Box 85467, 3508 AL Utrecht, The Netherlands.
authors.forename: Simone
authors.initials: S
authors.lastname: Morelis
authors.forename: Paul C M
authors.initials: PC
authors.lastname: van Noort
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D007700:Kinetics; D010616:Phenanthrenes / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D010616:Phenanthrenes; D014867:Water; D002606:Charcoal; C031181:phenanthrene