Description of Project

Calcium carbonate reaction kinetics has important application in several areas of Earth Science, including water quality concerns and the global carbon budget. However, the influence and mechanism of natural organic matter mediation rates remains largely unknown. Laboratory, field, and theoretical investigations of calcium carbonate formation and dissolution rates in surface water and groundwater systems are studied and quantified. An important aspect of this research is the interaction of natural organic material with calcium carbonate surfaces during crystal growth and dissolution. We are developing models to evaluate the influence of natural organic material on the kinetics of calcium carbonate crystal growth and dissolution. Other activities focus on the development and verification of methods to characterize natural organic matter-metal ion speciation.

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