Keshia Koehn

Ph.D candidate in Civil Engineering

Keshia Koehn

Keshia studies bacterial interactions with natural organic matter and mineral nanoparticles. As an undergraduate, she researched the hydrogeochemistry of karst systems (environments that have been dissolved by water—for example, caves) with an emphasis on spatial modeling. One project was projecting real-time contamination pathways in the city of Fayetteville, Arkansas, in the event of accidental spills and then quantifying runoff.

Now at Notre Dame, Keshia is investigating bacterially mediated precipitation of carbonates of importance to carbon sequestration and the earth’s carbon cycle. Winner of a three-year National Science Foundation Graduate Research Fellowship, Keshia is advised both by Prof. Patricia Maurice (Civil Engineering and Geological Sciences) and Prof. Jennifer DuBois (Chemistry and Biochemistry).

Keshia is associated with Notre Dame’s Center for Environmental Science and Technology. She says: “Since arriving at Notre Dame, I have been able to conduct research, work as a teaching assistant, and become trained on a wide variety of analytical equipment not normally offered at other universities for student use. I am now drafting a paper for peer-reviewed publication. Academics aside, I have enjoyed the Notre Dame campus atmosphere, as well as academic and recreational programs offered by the Graduate Student Union and RecSports.