INFLUENCE OF ABIOTIC PARAMETERS ON THE EFFICIENCY OF CHEMICAL OXIDATION OF PAH-CONTAMINATED SOIL AND ITS IMPACT ON SOIL MICROBIAL COMMUNITY.

PELUFFO, MARINA; VILLALBA VILLALBA, NADIA; MORA, VERONICA C.; ROSSO, JANINA A.; MORELLI, IRMA S.

Barcelona

Congreso; 12th International UFZ-Deltares Conference on Groundwater-Soil-Systems and Water Resource Management. AquaConsoi; 2013

Polycyclic aromatic hydrocarbons (PAH) are ubiquitous compounds of particular concern because of their widespread occurrence in the environment and their carcinogenic potential. Bioremediation is a low-cost and low-disturbance solution for the cleaning of contaminated sites. However, a general problem of bioremediation of PAH-contaminated soil is the slow degradation rate. On the other hand, in situ chemical oxidation has been increasingly regarded as a relevant alternative to conventional treatment technologies for remediation of soils contaminated by recalcitrant organic contaminants, including PAH. However, the efficiency of chemical oxidation is dependent of PAH properties and soil characteristics and its potential effect on soil physical, chemical and biological properties is relevant. To address the limitations of individual remediation techniques and to achieve better PAH removal efficiencies, the combination of chemical and biological treatments can be used.