Investigation of Liquid Channeling in Heap by Tracer Test

Abstract

The experimental results were analyzed by the advection diffusion model with multiple step-wise liquid flow pattern. As a result, the maximum liquid velocity was 3.8 times larger than the average velocity at the final stage of leaching while the maximum was 1.4 times larger than the average at the initial stage of leaching. These results indicate that the channeling is clear quantitatively and become larger with time.