title: Biological Fenton's oxidation of pentachlorophenol by aquatic plants.
abstract: This study proposes a new treatment method to decompose persistent chemicals such as pentachlorophenol (PCP) in water, utilizing hydrogen peroxide present in aquatic plants to proceed the biological Fenton reaction. PCP was not effectively removed by aquatic plants. However, by adding 2.8 mM of Fe(2+), there was a rapid removal of PCP while at the same time consumption of endogenous hydrogen peroxide occurred. It was observed the increase of chloride ions formation in water-confirming the complete degradation of PCP. These results demonstrated that PCP was oxidized through a biological Fenton reaction, and hydrogen peroxide in aquatic plants was a key endogenous substance in treatment of refractory toxic pollutants.
authors.affiliation: Department of Soil Science, Federal University of Lavras, Lavras, MG, 37200-000, Brazil, andrereis@aoni.waseda.jp.
authors.forename: Andre Rodrigues dos
authors.initials: AR
authors.lastname: Reis
authors.forename: Yukako
authors.initials: Y
authors.lastname: Kyuma
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Sakakibara
mesh_terms: D001673:Biodegradation, Environmental; D006861:Hydrogen Peroxide / Q000378:metabolism; D007501:Iron / Q000378:metabolism; D007700:Kinetics; D010084:Oxidation-Reduction; D010416:Pentachlorophenol / Q000032:analysis / Q000378:metabolism*; D010575:Pesticides / Q000032:analysis / Q000378:metabolism*; D010944:Plants / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
chemical_list: D010575:Pesticides; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide; D010416:Pentachlorophenol; D007501:Iron