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While “green mining” aims for a more ecological approach to mining metals, The Iron Ring explores how contaminated mining grounds may benefit from the mining of metals. For The Iron Ring, 24 kg of iron-tainted grass was removed from contaminated mining grounds and transformed into a ring of 2 g metallic iron.
Iron is considered very important to life in general and has a lower toxicity than other metals. Extensive or abandoned metal mines and industrial activities have, however, caused metal releases into the ecosystem to accelerate and reach toxic levels. So-called iron hyper-accumulating plants are tolerant to inorganic iron and can grow on these degraded grounds. There they extract the metal from the soil to store it in very high concentrations inside their roots, stems and leaves. Les mer...