A rapid, high-heat electrothermal soil remediation process flushes out both organic pollutants and heavy metals in seconds without damaging soil fertility.
Filtration systems are designed to capture multiple harmful substances from water or air simultaneously, but pollutants in soil can only be tackled individually or a few at a time -- at least for now.
Heavy metals like lead, arsenic, zinc, cobalt, copper, mercury and nickel and organic contaminants like pesticides and microplastics are the main pollutants in soil.
"Certain contaminants might be fine -- they're not going to move. Other ones might migrate to groundwater and drinking water sources. Some could end up tainting crops, where you could have toxic heavy metals being drawn up through the roots of plants, etc.," Griggs said."Being able to regenerate the soil and put it right back where it was, that's a huge advantage over existing technologies that are out there.
"We developed two implementation models for both off- and on-site deployment, and we are looking forward to taking this process to the next stage -- field testing," Deng said.
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