Is it possible to increase bioavailability but not environmental risk of PAHs in bioremediation?
Ortega Calvo, J. J. | Tejeda Agredano, M. C. | Jiménez Sánchez, Celia | Congiu, E. | Sungthong, R. | Niqui Arroyo, J. L. | Cantos, Manuel
The current poor predictability of end points associated with the bioremediation of polycyclic aromatic hydrocarbons (PAHs) is a large limitation when evaluating its viability for treating contaminated soils and sediments. However, we have seen a wide range of innovations in recent years, such as an the improved use of surfactants, the chemotactic mobilization of bacterial inoculants, the selective biostimulation at pollutant interfaces, rhizoremediation and electrobioremediation, which increase the bioavailability of PAHs but do not necessarily increase the risk to the environment. The integration of these strategies into practical remediation protocols would be beneficial to the bioremediation industry, as well as improve the quality of the environment.
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