Hydraulic fracturing is an efficient way to recover natural gas from rock formations beneath the surface of the ground. However, it involves the injection of highly pressurized water into the ground, producing millions of gallons of hazardous wastewater. This wastewater contains chemicals including heavy metal (II) cations and therefore cannot be reused. It has been suggested that pyridine-2,6-dicarboxylic acid, also known as dipicolinic acid (DPA), is able to chelate to the metal (II) cations that are present in the hydrofracking wastewater. The purpose of this research is to explore the removal of metal (II) cations from aqueous solution by introducing DPA derivatives. Currently, the focus is on strontium and calcium due to the abundance of each contained within the wastewater. This work also examines the possibility of soil bacteria utilizing the calcium and strontium as a nutrient source, therefore effectively working towards the bioremediation of the wastewater from hydraulic fracturing.

Using small molecule pyridine-based compounds to extract Ca<sup>2+</sup> and Sr<sup>2+ </sup> from aqueous solutions then to be used as a nutrient source for soil bacteria

251st National Meeting (2016)

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Using small molecule pyridine-based compounds to extract Ca2+ and Sr2+ from aqueous solutions then to be used as a nutrient source for soil bacteria

Using small molecule pyridine-based compounds to extract Ca²⁺ and Sr²⁺ from aqueous solutions then to be used as a nutrient source for soil bacteria