title: Partitioning of naphthalene to gemini surfactant-treated alumina.
abstract: Partitioning of naphthalene to anionic surfactants adsorbed on alumina in the aqueous phase was studied for immobilization of the contaminant in the subsurface. Three anionic surfactants with different molecular structures were used: a conventional (sodium dodecylbenzene sulfonate, SDDBS), a gemini (dialkylated disulfonated diphenyl oxide with alkyl chain length of 12, DADS-C12), and a dianionic (monoalkylated disulfonated diphenyl oxide with alkyl chain length of 12, MADS-C12). Sorption of the surfactants onto alumina was studied in a series of batch experiments and the effectiveness of the adsorbed surfactants onto aluminum oxide as a sorptive phase for naphthalene was compared.
authors.affiliation: Department of Civil Engineering, University of Hawaii at Manoa, Honolulu 96822, USA.
authors.forename: D
authors.initials: D
authors.lastname: Neupane
authors.forename: J W
authors.initials: JW
authors.lastname: Park
mesh_terms: D000327:Adsorption; D000535:Aluminum / Q000737:chemistry; D001557:Benzenesulfonates / Q000737:chemistry*; D007700:Kinetics; D009281:Naphthalenes / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*; D014867:Water; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
chemical_list: D001557:Benzenesulfonates; C412584:DADS-C12; C412585:MADS-C12; D009281:Naphthalenes; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical; D014867:Water; C031721:naphthalene; C001114:dodecylbenzenesulfonic acid; D000535:Aluminum