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There are many methods for extracting ore from the raw rock and minerals they’re often mixed in with.
For hundreds of years, heap leach pads were simple constructions of graded and berm soil with ore piled directly on top of the ground.
When compared to other widely used mining and processing methods, heap leaching is one of the least environmentally impactful options for producing precious metals.
A heap leach pad may seem simple to construction and similar in design to any other containment basin.
While selecting the right liner is key to longevity and good performance under a leaching heap, it’s not the only factor to consider.
Since heap leaching can help pull more valuable ore from tailings and other waste products left behind by other methods, it’s a great way to reduce the environmental impact of conventional mining.
Heap leaching is just one of many techniques leveraged today to make mining operations for precious metals as effective as possible.
Heap leaching is a unique technique, but it’s based on some fairly basic concepts.