Enhancers in the biological removing process of polyciclic aromatic hydrocarbons (PHAs)
DOI:
https://doi.org/10.17533/udea.hm.323248Keywords:
biodegradation, polycyclic aromatic hydrocarbons, enhancer, soilAbstract
Introduction: Polycyclic aromatic hydrocarbons (PAHs) are a type of environmental pollutants formed from the incomplete ignition of fossil fuels, during natural events or human activities; therefore, they are being constantly accumulated in the environment. The main way to eliminate these PAHs is by bioremediation from the ability of microorganisms to degrade highly toxic and recalcitrant compounds. Bioremediation processes may be intensified by implementing enhancers, which are substances or compounds that support remediation techniques currently used to improve results.
ObjectIve: To describe enhancers implemented in the biological degradation of PAHs from the scientific literature.
Methods: A systematic review of the scientific literature of the past 10 years was conducted. The search was realized on the SpringerLink database and ScienceDirect metase-arch, the search path (biodegradation AND (Polycyclic Hydrocarbons Aromatic OR PHA) AND enhancer AND soil) was used.
Results: 22 articles to develop the systematic review, 15 of Sci-encedirect and 7 of Springerlink were obtained and were complemented by one master’s thesis and one non-indexed journal article. Different enhancers, nature, uses and percentages of enhancement of bioremedia-tion action were described.
Conclusions: The use of nitrogen and some microorganisms gen-erate an increase in the bioremedial effect of PHAs.
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