Title

Spatial Determination of Organic Matter on Sediment Particles by Scanning Electron Microscope Analysis

Abstract

Natural organic matter is the dominant factor for determining equilibrium and kinetic processes during pollutant sorption and desorption phenomena in sediment and soil experiments. While several models are suggested for predicting these processes, few offer mechanistic interpretations since the spatial location of organic matter on sediment particles is unknown. I examined sediments from multiple locations using SEM-EDX to determine and analyze particles for their elemental composition, specifically the location of carbon. Through a carbon map of the sediment, my investigation shows that organic matter tends to gather in clumps on the aggregates and occasionally on rough edges, and is not spread evenly across a sediment matrix.

Faculty Sponsor

Frank Dunnivant

Tracks

Heavens and Earth

Terms of Use

ARMINDA Terms of Use

Location

Science 159

Presentation Type

Oral Presentation

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Spatial Determination of Organic Matter on Sediment Particles by Scanning Electron Microscope Analysis

Science 159

Natural organic matter is the dominant factor for determining equilibrium and kinetic processes during pollutant sorption and desorption phenomena in sediment and soil experiments. While several models are suggested for predicting these processes, few offer mechanistic interpretations since the spatial location of organic matter on sediment particles is unknown. I examined sediments from multiple locations using SEM-EDX to determine and analyze particles for their elemental composition, specifically the location of carbon. Through a carbon map of the sediment, my investigation shows that organic matter tends to gather in clumps on the aggregates and occasionally on rough edges, and is not spread evenly across a sediment matrix.

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