Kinetic Study of the Reactions of Sulfate Radical Anions with Phenantrene in Aqueous Solutions

FABRICIO RAGONE; VERÓNICA MORA; JANINA ROSSO

Conferencia; 21st I-APS (Inter- American Photochemical Society) Conference; 2011

Polycyclic aromatic hydrocarbons (PAH) are ubiquitous environmental contaminants whichderived from a variety of anthropogenic sources involving mainly incomplete combustionof organic matter and by industries. It has been reported that many PAH show a high toxic,carcinogenic, and mutagenic potential. They are hazardous to ecosystems and human health.Therefore, it is important to investigate the fate of PAH in aquatic environments and find away to eliminate them or reduce their toxicity.In-situ chemical oxidation (ISCO) involves the introduction of a chemical oxidant intothe subsurface for the purpose of transforming groundwater or soil contaminants into lessharmful chemical species. Persulfate (PS) is the newest form of oxidant currently beingused for ISCO. PS can be chemically, photochemically, or thermally activated to generatethe stronger oxidant sulfate radicals (SO4.-), which are the main oxidant species. Thus, theirreactivity with the contaminant studied is the first parameter to be considered.