title: Phytoremediation in mangrove sediments impacted by persistent total petroleum hydrocarbons (TPH's) using Avicennia schaueriana.
abstract: This study evaluated the efficiency of Avicennia schaueriana in the implementation of phytoremediation compared with intrinsic bioremediation in mangrove sediments contaminated by total petroleum hydrocarbons (TPHs). The experiment was conducted for 3months at a pilot scale under conditions similar to a mangrove: the dynamics of the tides were simulated, and physical, chemical, microbiological and biogeochemical parameters were monitored. After the 90 days, it was found that the phytoremediation was more efficient in the degradation of the TPHs compared to bioremediation, reducing the initial concentration of 32.2-4.2 mg/g. A. schaueriana was also more efficient in mediating the degradation of different fractions of hydrocarbons, achieving a removal efficiency of 87%. The microbiological results consisted of a higher growth in the model with the plants, demonstrating the phytostimulation ability of the plants. Finally, the experiment showed that phytoremediation is a promising alternative in mangrove impacted by oil.
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia, Campus de Ondina, 40170-290 Salvador-BA, Brasil. icarotam@gmail.com
authors.forename: Icaro T A
authors.initials: IT
authors.lastname: Moreira
authors.forename: Olivia M C
authors.initials: OM
authors.lastname: Oliveira
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Triguis
authors.forename: Antonio F S
authors.initials: AF
authors.lastname: Queiroz
authors.forename: Sergio L C
authors.initials: SL
authors.lastname: Ferreira
authors.forename: Cintia M S
authors.initials: CM
authors.lastname: Martins
authors.forename: Ana C M
authors.initials: AC
authors.lastname: Silva
authors.forename: Brunno A
authors.initials: BA
authors.lastname: Falcão
mesh_terms: D032407:Avicennia / Q000502:physiology*; D001673:Biodegradation, Environmental; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D006838:Hydrocarbons / Q000032:analysis* / Q000378:metabolism; D010578:Petroleum / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism; D053833:Wetlands
chemical_list: D006838:Hydrocarbons; D010578:Petroleum; D014874:Water Pollutants, Chemical