Phytomining, sometimes called agromining, is the concept of extracting heavy metals from the soil using plants. Unlike Phytoremediation, where extraction is used for cleaning up environmental pollutants, phytomining is for the purpose of gathering the metals for economic use.
Phytoming exploits the existence of hyperaccumulator plants which naturally have proteins or compounds that bind with certain metal ions. Once the hyperaccumulation happens, the final metal, or bio-ore, needs to be refined from the plant matter. A 2021 review concluded that the commercial viability of phytomining was "limited" because it is a slow and inefficient process.
