ENVRSunday, September 7, 2003

1:30 PM-5:10 PM Javits Convention Center -- 1A21,Oral
Biogeochemistry of Chelating Agents
Reactions
Presiding:Jeanne M. VanBriesen
Organizers:Bernd Nowack
Jeanne M. VanBriesen
1:30 PM Introductory Remarks
1:35 PM 22Metal ion-chelating agent mixtures: Synergistic effects and reactivity
Alan T. Stone
2:15 PM 23Glyphosate adsorption on soils
María dos Santos Afonso, Beatriz C. Barja, Romina C. Pessagno, Héctor R. Tévez
2:35 PM 24Adsorption of glyphosate and phosphate on clay silicates and oxides
Anne Louise Gimsing, Ole K. Borggaard
2:55 PM 25Oxidation of chromium(III) complexes with aminocarboxylate chelating agents by manganese(III,IV) oxide
Richard F. Carbonaro, Alan T. Stone
3:15 PM Intermission
3:30 PM 26Soluble Mn(III) complexes arising from the reaction of pyrophosphate and phosphonate-containing chelating agents with manganese(III,IV) (hydroxides
Yun Wang, Alan T. Stone
3:50 PM 27Spectroscopic study of the effect of organic ligand complexation on the reduction of uranium (VI) by AH2DS
Zheming Wang, Ken Wagnon, Calvin C. Ainsworth, Kevin M Rosso, James Fredrickson
4:10 PM 28Coupled hydrology and geochemistry of chelated metals in Hanford and ORNL sediments
Melanie A. Mayes, Molly N. Pace, Xiangping L. Yin, Philip M. Jardine, Bruce N. Bjornstad
4:30 PM 29Field-scale transport of chelated metals in contaminated fractured shale bedrock
Tonia L. Mehlhorn, Philip M. Jardine, Scott C. Brooks
4:50 PM 30Modeling of heavy metals and EDTA complexes adsorption by bauxite waste red mud
Resak Apak, Kubilay Güclü

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The 226th ACS National Meeting, New York, NY, September 7-11, 2003