Estimation of partition coefficients (Kd) of polycyclic aromatic hydrocarbons in fractured aquifer

Authors

  • Fernando Eduardo Boff Napeia Consultancy and Projects Ltda., Brazil.
  • Amanda Brisotto Clemes Napeia Consultancy and Projects Ltda., Brazil.
  • Jardel Kappaun Cocconi Napeia Consultancy and Projects Ltda., Brazil.
  • Bernardo Mokan Maffessoni National Observatory, RJ, Brazil.
  • Letícia Oliboni Napeia Consultancy and Projects Ltda., Brazil.

DOI:

https://doi.org/10.18226/23185279.e251428

Keywords:

Contaminant behavior, environmental monitoring, retardation, partition coefficient, TPH

Abstract

In the period between 2016 and 2021, after remediation and risk assessment in an industrial area contaminated by polycyclic aromatic hydrocarbons (PAH), groundwater quality control was promoted, using a network consisting of 8 monitoring wells. Monitoring of the environmental recovery stage was certified by the substances: TPH, o-Xylene, 1,2,4Trimethylbenzene, Naphthalene, Xylenes, Phenanthrene, Anthracene, Chrysene, Benzo(a)pyrene and Total PAHs. The focus of the evaluation was on well PM03, given its greater representativeness and proximity to a residual source of contamination. Water circulation at this interface occurs mainly in a fractured environment belonging to the Serra Geral aquifer system. At this point, the substances of interest showed different migration speeds (Vcont) and attenuation (Vr). Based on the determination of total (n), effective porosity (ƞef), hydraulic conductivity (K) and the relationship between the advective flow velocity of water (Vr) and contaminants (Vcont), the retardation factors (R) and the partition coefficients (Kd).

Published

02/22/2025

How to Cite

(1)
Eduardo Boff, F.; Brisotto Clemes, A.; Kappaun Cocconi, J.; Mokan Maffessoni, B.; Oliboni, L. Estimation of Partition Coefficients (Kd) of Polycyclic Aromatic Hydrocarbons in Fractured Aquifer. Sci. cum Ind. 2025, 14, e251428.