title: Role of sol with iron oxyhydroxide/sodium dodecyl sulfate composites on Fenton oxidation of sorbed phenanthrene in sand.
abstract: In situ Fenton oxidation has been recently used to oxidize sorbed organic contaminants in soil. The objective of present contribution was to study the role of sodium dodecyl sulfate (SDS) as anionic surfactant and sol with iron oxyhydroxide/SDS for Fenton oxidation of sorbed phenanthrene in sand. The most effective experimental condition for phenanthrene oxidation was the Fenton-like reaction system with 0.35% H2O2, 30 mM SDS, and 4 mM FeCl2. The Fenton-like reactions under these experimental conditions resulted in the production and sustenance of a stable sol with iron oxyhydroxide/SDS composites over 24 h. The formation of iron oxyhydroxide/SDS composites resulted in stabilization of H2O2, and then the Fenton-like reactions were sustained over 24 h. Furthermore, the sol of iron oxyhydroxide/SDS composites gave suitable sites to sustain oxidations of dissolved phenanthrene over a prolonged reaction span, which is required for in situ chemical oxidation.
authors.affiliation: Department of Civil Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-Gu, Seoul, Republic of Korea.
authors.forename: Joo-Yang
authors.initials: JY
authors.lastname: Park
authors.forename: Jung-Hwan
authors.initials: JH
authors.lastname: Kim
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D010084:Oxidation-Reduction; D010616:Phenanthrenes / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry*; D012989:Soil Pollutants / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D010616:Phenanthrenes; D012989:Soil Pollutants; C021024:ferric hydroxide; D012967:Sodium Dodecyl Sulfate; C031181:phenanthrene; D012822:Silicon Dioxide; D006861:Hydrogen Peroxide