Mine for metal with plants
Image: Metalplant
Plants like sunflowers are viable nature-based solutions that remove heavy metal from polluted soil through the scientific process of phytoremediation. The term is a combination of the Greek phyto (plant) and Latin remedium (restoring balance). Simply, brilliantly, and quickly, the plants take up the heavy metal in large quantities and store them in their fatty tissues. This causes no harm to the sunflowers, nor to the land. They also thrive in hot, dry climates. What a wonder for a world wracked by pollution and climate change impacts.
Now imagine taking this incredible adaptation even further. What if we extracted the metals from the plants and use these metals in our technology so we didn’t need to mine for them?
This is exactly the mission of Metalplant, a startup in Albania transforming some of the most degraded land in the world into a lucrative venture. This idea of phytoremediation isn’t new. Many have tried. Metalplant added another step to their process. While mining with plants (a process they call phytomining), they also remove CO2 from the atmosphere by spreading large volumes of rock dust on their farms. That rock pulls carbon out of the air. This process is known as enhanced rock weathering.
I worried about the impact of the rock dust on the soil and the life within that soil. Thankfully, enhanced rock weathering is a regenerative practice, using mycorrhiza and other fungi fostered by the roots of the plants absorbing the metal from the soil.
Curious and want to learn more? Metalplant would love to hear from you. Get in touch with them at https://metalplant.com/contact/.