Abstract

CORONA-RAMIREZ, L.  and  ITURBE-ARGUELLES, R.. Atenuación natural en suelos contaminados con hidrocarburos. Ing. invest. y tecnol. [online]. 2005, vol.6, n.2, pp.119-126. ISSN 2594-0732.

A contaminated soil experiment was performed using samples from a refinery, containing oil derivate hydrocarbons, specifically those with high concentrations of polyaromathic hydrocarbons (PAH). The testing consisted in 7 pans with 7kg of soil, the preparation of 6 pans under specific conditions and one as a blank, the conditions were: water content (15 y 30%), addition of nutrients (N&P) and addition a non-ionic surfactant.

The process consisted in the daily aeration and water control of the samples. The PAH were analyzed: anthracene, benzo(a)pyrene, chrysene, phenanthrene and naphthalene. The results after 8 weeks showed a gradual degradation of PAH, indicating a better removal obtained when the water content was 30% with nutrients addition.

Keywords : Bioremediation; PAH; degradation.

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