Biomining harnesses the natural capabilities of microorganisms to mobilize, extract, and recover metals from ores, concentrates, industrial residues, and waste materials. Since the mid-20th century, scientists have known that certain microorganisms can interact with minerals and metals as part of their metabolism. Some microbes generate acids, oxidants, and other natural lixiviants that break down mineral structures and release metals into solution, from which they can then be selectively recovered and converted into marketable products.
These biological processes can be applied to a wide range of metals and metalloids, including copper, zinc, nickel, cobalt, rare earth elements, uranium, and other critical and valuable materials. Biomining can also support the recovery of precious metals such as gold by biologically breaking down the minerals in which they are locked.
The key advantage of biomining is not only its lower environmental impact, but also its potential to be cost-efficient where conventional processing is too expensive or technically challenging. Biological processes can operate under relatively mild conditions, often at lower temperatures and pressures and with lower requirements for aggressive chemical reagents and energy-intensive processing. This can reduce reagent consumption, energy demand, waste-treatment requirements, and overall processing costs.
As a result, biomining can unlock value from low-grade ores, complex mineral matrices, industrial residues, tailings, electronic waste, and other materials that may currently be considered uneconomic to process. Instead of competing only with established technologies for high-grade raw materials, biotechnology can open entirely new resource streams.
Modern bioprocessing also allows microorganisms and their metabolites to be produced under controlled conditions and integrated into scalable hydrometallurgical processes. The resulting metal-bearing solutions can then be processed using selective recovery technologies to produce concentrates, salts, carbonates, metals, or other marketable products.
In fact, biomining is so versatile that it can be used on other planetary bodies. Studies on the International Space Station have shown that microorganisms from extreme environments on Earth can leach a large variety of important minerals and metals from rocks when exposed to the cold, heat, radiation, and vacuum of space.
Biological technologies can simultaneously contribute to waste treatment and resource recovery. In suitable applications, microorganisms can help remove contaminants from industrial residues or process streams while recovering valuable metals from the same material—turning an environmental liability into a potential resource.
At BiotaTec, we build on these principles by developing cost-efficient, customer-specific biomining processes designed around the actual raw material, target metals, and commercial objectives of each project. Our aim is to use biotechnology where it creates the greatest value: unlocking resources that conventional processing cannot recover economically.