HR: 1340h
AN: B33C-1425    [Abstracts]
TI: Use of New Composite Material Based on Nanosized Zero Valent Iron for Catalytic Transformations of Water Contaminants
AU: * Dror, I
EM: idror@weizmann.ac.il
AF: Weizmann Institute of Science, Dept. of Environmental Sciences and Energy Research, Rehovot, 76100, Israel
AU: Cortis, A
EM: acortis@lbl.gov
AF: Lawrence Berkeley National Laboratory, Earth Sciences Division, Berkeley, CA 94720, United States
AU: Berkowitz, B
EM: brian.berkowitz@weizmann.ac.il
AF: Weizmann Institute of Science, Dept. of Environmental Sciences and Energy Research, Rehovot, 76100, Israel
AB: A new composite material is presented for the catalytic, reductive transformation of many types of water contaminants. This material may be further mixed with an inert and/or active macroscopic scaffold, such as vermiculite, to optimize hydraulic properties. The composite material contains combinations of nanosized zero valent metals, electron mediators and natural support matrices. The composite materials are shown to degrade or transform various water contaminants with high oxidation states to relatively benign compounds. Physical, chemical and hydrological properties of the composite material are discussed, along with surface properties and composition. Measurements of transformation kinetics are demonstrated for several typical, persistent organic and metal contaminants in aqueous solutions.
DE: 0498 General or miscellaneous
DE: 1831 Groundwater quality
DE: 1832 Groundwater transport
SC: Biogeosciences [B]
MN: 2007 Fall Meeting