1. Repurposing Zinc from Mining Tire Waste to a Fertilizer Resource

Zinc (Zn) deficiency is common on high pH soils when growing field crops like Corn, Barley and Wheat.  Not only are crop yields and quality limited by low Zn, but more importantly the dilution of Zn in food stuffs and, thereby, Zn deficiency in the human diet has become a major concern as recognized by the World Health Organization.  At the same time, there is a Global problem in proper repurposing/disposal of used tires that contain between 1-3% ZnO.  In fact, in Chile, the... K. Greer, J. Wiebe, E. Bremer