• 专利标题:   Method for performing soil remediation, involves mixing contaminated soil with conductive additive to form mixture, where soil comprises pollutants, and applying voltage across mixture, where voltage is applied in voltage pulses.
  • 专利号:   WO2022169859-A1
  • 发明人:   TOUR J M, DENG B
  • 专利权人:   UNIV RICE WILLIAM MARSH
  • 国际专利分类:   B09C001/08
  • 专利详细信息:   WO2022169859-A1 11 Aug 2022 B09C-001/08 202268 Pages: 86 English
  • 申请详细信息:   WO2022169859-A1 WOUS014923 02 Feb 2022
  • 优先权号:   US144862P

▎ 摘  要

NOVELTY - The method involves mixing contaminated soil with a conductive additive to form a mixture, where the contaminated soil comprises pollutants. A voltage is applied across the mixture, where the voltage is applied in voltage pulses, duration of the pulses is for a duration period and the application of the voltage across the mixture decomposes and removes the pollutants from the contaminated soil to form remediated soil. The pollutants are organic pollutants, metals, metalloids, heavy metals, toxic heavy metal, rare earth metal, main group metal, or transition metal. The organic pollutants are converted to flash graphene. USE - Method for performing soil remediation by flash Joule heating (FJH) in a belt-fed process, in an autonomous process and in a continuous process. ADVANTAGE - The method enables to remediate contaminated soil, which is capable of removing heavy metals from the contaminated soil in an economical manner, and does not require the use of solvents or expensive chemicals, and provides stable and non-toxic form of carbon, and effectively removes heavy metals in contaminated soils. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a system for performing soil remediation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a FJH system. Carbon Black Mixture (301) Graphite Electrodes (302) Capacitor Bank (303)