Fig. 2: Removal of toxic heavy metals in soil by vaporization. | Nature Communications

Fig. 2: Removal of toxic heavy metals in soil by vaporization.

From: High-temperature electrothermal remediation of multi-pollutants in soil

Fig. 2: Removal of toxic heavy metals in soil by vaporization.The alternative text for this image may have been generated using AI.

a Vapor pressure-temperature relationships of representative heavy metals and carbon. The red dashed line denotes the temperature of 3000 °C. b The removal efficiencies of representative heavy metals from soil varied with HET voltages. c The removal efficiencies of heavy metals at an HET voltage of 100 V. The contents of heavy metals in soil after repetitive electric pulses for (d) Cd, (e) Hg, (f) Pb, (g) Co, (h) Ni, and (i) Cu. The safe contents are from the standard of California Human Health Screening Levels33. The concentration of 0 denotes the value lower than the detecting limits of ICP-OES. The error bars denote SD where N = 3.

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