742 Oxyanions in Soil Environments: II

Oral Session
S02 Soil Chemistry
Wednesday, 8 October 2008: 1:25 PM-4:45 PM
George R. Brown Convention Center, 360C

Samira Daroub
1:25 PM
Introductory Remarks
1:30 PM
Methylarsenate Sorption to Aluminum Oxide.
Masayuki Shimizu, University of Delaware and Center for Critical Zone Research; Matthew Ginder-Vogel, University of Delaware and Center for Critical Zone Research; Sanjai J. Parikh, University of Delaware; Donald Sparks, University of Delaware and Center for Critical Zone Research
1:45 PM
Kinetics of Arsenic Transformations in the Soil Environment.
Brandon Lafferty, University of Delaware; Donald Sparks, Univ. of Delaware
2:00 PM
Rates and Mechanisms of Arsenite Oxidation by Nano-Mn(IV) Oxide Mineral Phases.
Matthew Ginder-Vogel, Univ. of Delaware; Jason Fischel, University of Delaware; Donald Sparks, Univ. of Delaware
2:15 PM
Development of Arsenic and Iron Biogeochemical Gradients upon Anaerobiosis at Soil Aggregate Scale.
Yoko Masue-Slowey, Stanford University; Paul Bedore, Stanford University; Celine Pallud, Univ. of California, Berkeley; Scott Fendorf, Stanford University
2:30 PM
Field Evaluation of Arsenic Speciation in Sediments at the Ground Water/Surface Water Interface.
Todd Luxton, US EPA, ORD; Kirk Scheckel, U.S. EPA; Robert Ford, U.S. EPA
2:45 PM
Coupled Biogeochemical and Hydrologic Processes Governing Arsenic Transport within Evolving Sedimentary Basins of Southeast Asia.
Benjamin Kocar, Stanford University; Samantha Ying, Stanford University; Matthew Polizzotto, Stanford University; Shawn Benner, BoiseState University; Mengieng Ung, Resource Development International; Bunseang Suy, Resource Development International; Kongkea Phan, Resource Development International; Mickey Sampson, Resource Development International; Scott Fendorf, Stanford University
3:00 PM
3:15 PM
Speciation and Toxicity of Antimonytroxide in Soil.
Erik Smolders, Katholieke Universiteit Leuven; Fien Degryse, Katholieke Universiteit Leuven; Koen Oorts, Katholieke Universiteit Leuven; Jelle Mertens, Katholieke Universiteit Leuven; Jurgen Buekers, Katholieke Universiteit Leuven; Geert Cornelis, Katholieke Universiteit Leuven
3:30 PM
Influence of Soil Solution Salinity on Boron Adsorption by Soils.
Sabine Goldberg, USDA-ARS; Donald Suarez, USDA-ARS; Peter J. Shouse, USDA-ARS
3:45 PM
The EXAFS Study of an Oxalate-Fe(III)-PO4 Ternary Compound as Analog to PO4 Sorption to Organic Matter.
Fiona Kizewski, North Carolina State University; Dean Hesterberg, North Carolina State Univ.; James Martin, North Carolina State University
4:00 PM
X-ray Microspectroscopy Analysis of Phosphorus Speciation in an Acidic Organic Soil.
Dean Hesterberg, North Carolina State University; Ian McNulty, Argonne National Laboratory; Kimberly Hutchison, North Carolina State University
4:15 PM
The Effect of Grain-Coating Mineralogy on the Storage of Nitrate and Sulfate in the Unsaturated Zone, Atlantic Coastal Plain, USA.
Timothy Reilly, US Geological Survey; Neil S. Fishman, US Geological Survey; Arthur L. Baehr, US Geological Survey
4:30 PM
Sulfate Retention by Allophane: Adsorption or Precipitation?.
Andrea Herre, TU Berlin, Institute of Ecology; Friederike Lang, TU Berlin, Institute of Ecology; Joerg Prietzel, GERMANY,Tech.Univ.-Munich; Juergen Thieme, Institute of X-ray physics, University of Goettingen; Stephan Kaufhold, Federal Institute for Geosciences and Natural Resources; Ulrich Gernert, TU Berlin; Martin Kaupenjohann, TU Berlin, Institute of Ecology
4:45 PM
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