earticle

영어

Polycyclic aromatic hydrocarbons (PAH’s), such as naphthalene and phenanthrene, are persistent contaminants in sediment environments, posing significant dangers to benthic ecosystems. Activated carbon (AC) has emerged as a promising material for the sequestration of PAH’s due to its high surface area, adsorption capacity, and cost-effectiveness. This study investigates the efficacy of granular activated carbon (GAC) of three different particle sizes, mixed into sediment to form a stabilizing layer, in sequestering naphthalene and phenanthrene from contaminated sediments. The research employs microcosm experiments with Lumbriculus variegatus to evaluate the ecological impact and bioturbation effects associated with the different GAC sizes. A polyethylene passive sampler will be used to assess the free concentration of PAHs over time, aiming to determine the optimal GAC size that maximizes contaminant sequestration while minimizing ecological disturbance. The expected outcome of this research is to identify a GAC size that effectively balances remediation efficiency with benthic organism health, contributing to the development of sustainable in-situ sediment remediation strategies