Citation:

Virkutyte, J., S. R. Al-Abed, E. F. Barth, D. Reible, P. Dunlap, AND S. Chattopadhyay. Catalytic Sorption of (Chloro)Benzene and Napthalene in Aqueous Solutions by Granular Activated Carbon Supported Bimetallic Iron and Palladium Nanoparticles. J. He, D. K. Sarker, and D. Tsoukalas (ed.), ISRN Nanotechnology. Hindawi Publishing Corporation, New York, NY, 2013(2013):Art 525697, 8 p, (2013).

Impact/Purpose:

This work explored the options of using granular activated carbon (GAC) and bimetallic (Fe/Pd) nanoparticle loaded activated carbon (Fe/Pd/GAC) to amend the conventional capping to improve its effectiveness in removing persistance organic pollutants.

Description:

Adsorption of benzene, chlorobenzene, and naphthalene on commercially available granular activated carbon (GAC) and bimetallic nanoparticle (Fe/Pd) loaded GAC was investigated for the potential use in active capping of contaminated sediments. Freundlich and Langmuir linearizations were both applied to this data, and it was found that the Freundlich model most closely fits the experimental data. Based on Freundlich parameters, the effective partitioning coefficients (L kg^-1) taking into account K_F and n were calculated to be 2.97×10⁶ and 8.25×10⁵ for benzene and chlorobenzene, respectively, on GAC. In addition, effective partitioning coefficients (L kg^-1) were 650, 5640, and 1.91×10⁵ for benzene, chlorobenzene, and naphthalene, respectively on Fe/Pd/GAC. Values of log K_F ( (µg/kg)/(µg/L)ⁿ) were 6.11, 7.11, and 7.54 for benzene, chlorobenzene and naphthalene, respectively for GAC and 4.53, 5.47 and 5.22, respectively for Fe/Pd/GAC.

URLs/Downloads:

Record Details: