|About this Abstract
||Part C-1: Hydrometallurgy 2018
||The Effect of Aeration on Chalococite Heap Leaching
||Wenying Liu, Giuseppe Granata
|On-Site Speaker (Planned)
Aeration provides oxygen and carbon dioxide for microbial activities to occur, a fundamental process occurring in chalcocite heap bioleaching. The aeration rate and aeration system design are critical for achieving optimum copper extraction. Mathematical modelling is an effective tool for assessing the effect of aeration on copper leaching behavior. In this study, the HeapSim-2D model was applied to simulate the effect of aeration on copper extraction from chalcocite using heap bioleaching. The model was calibrated using the historical data from two chalcocite heap bioleach pads located in Chile, one with aeration and the other without aeration. The model could satisfactorily simulate the copper leaching behavior in both cases. The modelling results showed that aeration greatly enhanced copper extraction, which was in agreement with site monitoring data; aeration rate and the design of aeration system played a key role in optimizing the process performance.
||Planned: At-meeting proceedings