The Role of Organic Matter and Metal Oxides in the Retention of Trace Metals by Soil and Suspended Particles

EPA Grant Number: R829500C002
Subproject: this is subproject number 002 , established and managed by the Center Director under grant R829500
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

Center: Center for the Study of Metals in the Environment
Center Director: Allen, Herbert E.
Title: The Role of Organic Matter and Metal Oxides in the Retention of Trace Metals by Soil and Suspended Particles
Investigators: Allen, Herbert E.
Institution: University of Delaware
EPA Project Officer: Hahn, Intaek
Project Period: April 1, 2002 through March 31, 2005
RFA: Targeted Research Center (2006) Recipients Lists
Research Category: Targeted Research , Hazardous Waste/Remediation

Objective:

The objective of this research project is to develop models to predict cadmium (Cd), copper (Cu), nickel (Ni), and zinc (Zn) uptake and release from soil particles into the soil solutions. The models focus on kinetics aspects, and will essentially improve the existing approaches based on equilibrium assumptions. The effect of soil properties (organic matter, oxides, metal loading, etc.) and solution composition (pH, dissolved organic matter, and Ca content) on Cd, Cu, Ni, and Zn release will be studied to find the necessary relationships and to evaluate the parameters of the model. Key soil and solution properties will be selected to use the minimal number of input parameters providing reasonable accuracy of predictions. The developed models will form an important component part of the Unit World Model of metal behavior in the environment.

Publications and Presentations:

Publications have been submitted on this subproject: View all 3 publications for this subprojectView all 3 publications for this center

Journal Articles:

Journal Articles have been submitted on this subproject: View all 3 journal articles for this subprojectView all 3 journal articles for this center

Supplemental Keywords:

RFA, Scientific Discipline, INTERNATIONAL COOPERATION, Waste, Geochemistry, Hazardous Waste, Ecological Risk Assessment, Ecology and Ecosystems, Hazardous, contaminated sediments, fate and transport , contaminated soil, remediation, Zinc, copper, extraction of metals, cadmium, bioaccumulation

Progress and Final Reports:

  • 2002 Progress Report
  • 2003
  • Final

  • Main Center Abstract and Reports:

    R829500    Center for the Study of Metals in the Environment

    Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
    R829500C001 Role of Dietary Exposure for Bioaccumulation and Toxicity of Metals in Aquatic Ecosystems Affected by Mining
    R829500C002 The Role of Organic Matter and Metal Oxides in the Retention of Trace Metals by Soil and Suspended Particles
    R829500C003 Developing a Model to Predict the Persistence of Metals in Aquatic Environments
    R829500C004 Effects of Dietary Metal Exposure on Fish and Aquatic Invertebrates
    R829500C005 Aquatic Toxicity and Exposure Assessment
    R829500C006 Development of a Model to Predict the Bioavailability of Metals to Soil Invertebrates
    R829500C007 Bioaccumulation and Toxicity of Dietborne Particulate Metals to Benthic Invertebrates