In-Situ Soil Remediation via Chemical Flushing and Pyrolysis

The patent replaces mechanical excavation and physical transport systems with a chemical treatment system. Chemical flushing agents and oxidizing liquids are injected directly into the soil through injection holes to dissolve and oxidize contaminants in place, eliminating the need for mechanical soil removal and subsequent treatment facilities.

The patent extracts contaminants from the soil matrix through chemical flushing. The flushing agent dissolves contaminants and forms a slurry that is then pumped out through collection holes, separating the contaminated material from the clean soil without requiring complete excavation.

The patent extracts only the contaminated portion of the soil through chemical flushing. The flushing agent selectively dissolves contaminants and binds them into removable slurry, allowing extraction of contaminated material while leaving clean soil in place, thus minimizing soil loss.

The patent changes the physical and chemical parameters of the contaminated soil by injecting flushing agents that alter the soil's composition. The agent dissolves contaminants and changes the soil structure locally, forming a pumpable slurry that can be removed without disturbing the surrounding clean soil.

The patent segments the treatment process into discrete operational steps: injecting flushing agent through injection holes, allowing chemical reaction time, pumping out slurry through collection holes, and repeating the cycle. This segmented approach allows flexible adaptation to various terrain conditions while maintaining process simplicity.

The patent introduces chemical flushing agents and oxidizing liquids as intermediaries between the treatment system and the contaminated soil. These chemical mediators enable treatment in difficult terrains where mechanical equipment cannot access, by delivering active treatment materials through injection holes rather than requiring direct mechanical contact.