Bioremediation in Mangrove Sediments Impacted by Oil Using Two Types of Fertilizers NPK and OSMOCOTE, Brazil

Danusia Ferreira Lima, Olívia Maria Cordeiro Oliveira, Manoel Jeronimo Moreira Cruz, Jorge Alberto Triguis, Antonio Fernando de S. Queiroz

Department of Geochemistry (DGQ), Institute of Geosciences, Federal University of Bahia, Salvador, Brazil.
Nucleus of Environmental Studies (NEA), Institute of Geosciences (IGEO), Federal University of Bahia, Salvador, Brazil.

DOI: 10.4236/ojms.2012.24015                

Abstract

Bioremediation is a technique applied to several environmental impacts, among which the ones generated by petroleum derivatives, through the introduction of microorganisms into the environment, or creating optimal conditions for them to develop. The present study aimed to evaluate the degradation of saturated hydrocarbons through the biostimulation technique in the mangrove sediment impacted by petroliferous activities, testing the potentiality of two fertilizers (NPK and OSMOCOTE) as accelerating agents of the biodegradation of petroleum components, under experimental conditions. In order to understand the bioremediation process it was used the quantification of nutrient contents, the percent of saturated, aromatic and NSO hydrocarbons, and the behavior of saturated compounds along the entire experiment, besides the monitoring of physical and chemical parameters. Chromatographic profiles characterized a major degradation of saturated hydrocarbons at the units with NPK, presenting a better efficiency of this fertilizer in the tested biostimulation process.

Keywords

Biostimulation; Saturated Hydrocarbons; Mangrove; NPK; OSMOCOTE

Conflicts of Interest

The authors declare no conflicts of interest.

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