Methods for remediation of contaminated soil by rapid electrothermal mineralization
The REM process efficiently converts PFAS to calcium fluoride in soil using biochar, addressing inefficiencies in existing methods by achieving high removal rates with minimal environmental impact and maintaining soil quality for large-scale remediation.
WO2025080651A9 Publication Date: 2026-06-18WILLIAM MARCH RICE UNIVERSITY
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- WILLIAM MARCH RICE UNIVERSITY
- Filing Date
- 2024-10-09
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Current methods for remediating PFAS-contaminated soil suffer from low efficiency, high energy and water consumption, and lack of generality, with traditional thermal treatments causing secondary pollution and degrading soil properties.
⚗Method used
A rapid electrothermal mineralization (REM) process using biochar as a conductive additive heats soil to >1000°C within seconds, converting PFAS to calcium fluoride with inherent calcium compounds, achieving high removal efficiencies and maintaining soil integrity.
🎯Benefits of technology
REM achieves >99% PFAS removal with minimal energy and water consumption, preserving soil properties and facilitating nutrient supply, making it suitable for large-scale on-site remediation.
✦ Generated by Eureka AI based on patent content.
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Abstract
Methods for remediating soil having persistent and bioaccumulative pollutants, and. more particularly, methods for remediating soil having per- and polyfluorinated alkyl substances (PFAS) and other halogen-containing contaminates by rapid electrothermal mineralization.
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