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This powerpoint presentation begins by providing a brief overview of the presence of nanoparticles (NPs) in water. The primary objective of this study was to examine how three commercially availablenanomaterials (TiO2, SiO2, Fe2O3) impact theremoval of Trichloroethylene (TCE) by activated carbon adsorption. Specific objectives included: nanoparticles characteristics, characterizing particle size distribution (PSD)zeta potential and pHsubpzc/sub; isotherm experiment; and, breakthrough studies - virgin and spent granular activated carbon (GAC) analysis. Materials and methods included: nanomaterials - Titania - 30 nm, Iron Oxide - 20 to 40 nm, Silica - 20 nm; adsorbates - TCE sub2/subPOsub4/sub, pH adjusted to 7with 10M solution of NaOH. Analytical instrumentation and experimental setup are presented, and conclusions are provided for electrokinetics, adsorption kinetics, and column breakthrough. Includes tables, figures.

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Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 33File Size: 1 file , 1.2 MB