Tna Arrowood's keynote discusses the need for a circular salt economy, that protects rivers and freshwater sources. Tina Arrowood has a Ph.D. in Physical Organic Chemistry and is a Principal Research Scientist, Arrowood works at DuPont Water Solutions and works with membrane technology that can be implemented to convert wastewater into freshwater.
Tina Arrowood begins her keynote by sharing her own personal connection with the Mississippi River, and her passion for protecting rivers. Salt contaminates river water and Arrowood outlines that river water is a precious resource that is drastically undervalued. As salt is added to river water, the river can be polluted and changed.
Arrowood outlines three defense mechanisms that can be used to protect rivers. The first is, "Water Recycle & Reuse," which means extracting less water from rivers and recycling the water that is extracted. The second defense mechanism is, "Salt Recycle & Reuse," where salt can be extracted from industrial waters and reused. The third mechanism is, "Developed Recycled Salt Users," where salt consumers purchase recycled salt, instead of salt sourced form mines.
Arrowood goes on to state that membrane technology can be used to bolster the first two defense mechanisms. As membrane technology is able to separate wastewater into salt and freshwater. Tina Arrowood goes on to emphasize the importance of converting salt consumers and developing the circular salt economy.