The source archive flash Joule heating compilation describes a family of environmental remediation applications for Flash Joule Heating (FJH), covering heavy metals, PFAS, contaminated soil, fly ash and volatile organic compounds. The material comes from a review excerpt and from patent abstracts, not from primary studies.
Reported applications
- Heavy metals: evaporative removal of 70–90% at temperatures just below 3,000 °C; residual heavy metals reportedly within safe limits after 2–3 pulses at 120 V.
- PFAS: electrothermal mineralization to NaF and CaF₂; WO2025193245 covers FJH of PFAS.
- Soil: above 80% Cd/Hg/Pb removal per pulse and above 99% PFAS removal at kilogram scale without external reagents; WO2025080651 and US2024116094/CA3209120 cover soil remediation by rapid electrothermal mineralization.
- Fly ash: CN120619034 covers heavy metals in waste-incineration fly ash, with fly-ash resistance set at ≤3 Ω and low-voltage pulse pretreatment plus controlled flash voltage, time and frequency to promote Pb, Zn and Cd volatilization.
- VOC oxidation: a catalytic system reported at 87% lower input power than a conventional furnace.
- Quartz sand: CN118359200 covers purification by flash heating and cooling to burst inclusions.
Technoeconomics
The review excerpt reports a 30% GHG reduction for coal fly-ash reuse in cement versus landfilling, and a 5–70% operating-expense reduction for soil remediation. The review's own limitations section notes that most such assessments are preliminary and omit rebound effects, both direct and indirect, and recommends uncertainty analysis.
Evidence status
All figures are author-reported in a review excerpt or applicant-claimed in patent abstracts. The compilation contains no primary data, no instrument traces and no independent replication. The patent entries cited here are abstracts only; no prosecution status, claim scope or deployment evidence is supplied. See Flash Joule Heating Claims vs. Evidence: The Dossier's Figures and the Absence of Independent Verification and Patent as Evidence.
Related pages
Flash Joule Heating (FJH) · Battery Black-Mass FJH Activation · Flash Joule Heating Claims vs. Evidence: The Dossier's Figures and the Absence of Independent Verification · Patent as Evidence
Source notes & attribution
- Nature Reviews Clean Technology (2025), review excerpt reproduced in the Rex Research compilation https://rexresearch.com/FlashJouleHeating/FlashJouleHeating.html .
- Patent abstracts WO2025193245, WO2025080651, US2024116094, CA3209120, CN120619034 and CN118359200 as reproduced in the same compilation.
- https://rexresearch.com/FlashJouleHeating/FlashJouleHeating.html