Agromining: farming for metals in the future?

Environ Sci Technol. 2015 Apr 21;49(8):4773-80. doi: 10.1021/es506031u. Epub 2015 Mar 4.

Abstract

Phytomining technology employs hyperaccumulator plants to take up metal in harvestable plant biomass. Harvesting, drying and incineration of the biomass generates a high-grade bio-ore. We propose that "agromining" (a variant of phytomining) could provide local communities with an alternative type of agriculture on degraded lands; farming not for food crops, but for metals such as nickel (Ni). However, two decades after its inception and numerous successful experiments, commercial phytomining has not yet become a reality. To build the case for the minerals industry, a large-scale demonstration is needed to identify operational risks and provide "real-life" evidence for profitability.

MeSH terms

  • Agriculture / economics
  • Agriculture / methods*
  • Agriculture / trends
  • Metals / analysis
  • Metals / isolation & purification
  • Metals / metabolism*
  • Mining / economics
  • Mining / instrumentation
  • Mining / methods*
  • Mining / trends*
  • Nickel / analysis
  • Nickel / metabolism
  • Soil Pollutants / analysis*

Substances

  • Metals
  • Soil Pollutants
  • Nickel