Grantee Research Project Results
The Relationships Among Particle Size, Composition, and Partitioning Phenomena in Aqueous Systems
EPA Grant Number: R825398Title: The Relationships Among Particle Size, Composition, and Partitioning Phenomena in Aqueous Systems
Investigators: Macalady, Donald L. , Bunge, Annette , Ranville, James
Current Investigators: Macalady, Donald L.
Institution: Colorado School of Mines
EPA Project Officer: Packard, Benjamin H
Project Period: December 15, 1996 through December 14, 1999 (Extended to December 14, 2000)
Project Amount: $374,300
RFA: Exploratory Research - Water Chemistry and Physics (1996) RFA Text | Recipients Lists
Research Category: Water , Safer Chemicals , Land and Waste Management
Description:
The purpose of this project is to provide a sound scientific basis and an improved computational model for the prediction of the effects of aquatic particles on the fate and transport of anthropogenic chemicals in aquatic systems. The key elements in the research are investigations of variations in the composition of natural organic matter (NOM) and concomitant effects on the partitioning of contaminant organic chemicals as a function of particle size. New, resolution, size-fractionation techniques applied to soil and sediment particles in colloidal and larger size ranges will enable isolation of precisely-defined size fractions. The size fractions, and in particular the associated NOM component, will be extensively characterized. Equilibrium partitioning experiments for a selected group of chemicals will be performed on each size fraction and related to the characteristics of the fractions.Publications and Presentations:
Publications have been submitted on this project: View all 13 publications for this projectSupplemental Keywords:
environmental chemistry, water, Colorado, CO, region 8, analytical., Ecosystem Protection/Environmental Exposure & Risk, Scientific Discipline, Geographic Area, Waste, Water, EPA Region, Fate & Transport, State, Chemistry, Environmental Chemistry, Contaminated Sediments, Monitoring/Modeling, Physics, equilibrium partitioning, particle size, chemical characteristics, contaminated sediment, aquatic ecosystem, Region 8, organic contaminants, computational model, fate and transport, partitioning phenomena, particulateProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.