How to Extract Gold with Microbial Heap Leaching?
Now, heap leaching is a popular way to separate gold from ore. Gravity, flotation, amalgamation, cyaniding, resin in pulp, carbon plasma adsorption and dump leaching are commonly used in gold processing. When gold ore is covered by sulfide ore, it is hard for cyanide to react with gold ore within. Microbe could be used to dissolve sulfide cover for the following heap leaching stage. We will introduce the microbe mining processing method in this article. Moderate thermophile and thermophilic bacteria are the most commonly used microbes in leaching, such as Sulfur thermophilic bacillus, thermal oxide vulcanization coli, sulphur bacteria and thiobacillus ferrous oxide. These microbes obtain the energy they need in the metabolic process according to oxide sulfide ore. There are three types of microbe leaching: contact leaching mechanism, indirect leaching mechanism and collaboration leaching mechanism. Contact leaching mechanism: bacteria secrete EPS to absorb on the ore surface. In the...