Contaminated Soil Reclamation TRIZ Cases

Calcium sulfide and trisodium phosphate convert mercury into insoluble sulfides, eliminating toxic vapor generation from thermal methods.

Heterocondensate binder with metal alkoxides prevents rapid decomposition in high-pressure environments.

A rotary drum reactor circulates heated thermal medium through internal pipe bundles to enhance heat transfer in contaminated soil.

A single power supply activates cascaded electron tube stages by propagating voltage through series connections, eliminating complex multi-supply systems.

Distributed heating elements and dynamic water injection maintain uniform soil temperature, reducing energy waste from large temperature differences.

Electric heating tips vaporize soil pollutants in situ, eliminating mechanical excavation costs and environmental nuisances.

Hydrogen peroxide oxidizes soil contaminants without additives or pH adjustments.

Segmented oxidant candles with integrated pneumatic circulators prevent rapid chemical migration in low permeable zones via controlled diffusion.

Warmed cleaning liquid separates contaminants from soil particles, reducing toxicity and enabling effective microbial decomposition.

A countercurrent washing tank separates sand from mud using opposing water flows to clean contaminated soil.

Integrated crushing and electrode system separates copper and nickel ions from contaminated soil.

Directional boring installs permeable reactive barriers in subsurface boreholes to treat groundwater contaminants.

Insoluble uric acid releases nitrogen slowly to overcome rapid leaching losses, lowering operational costs while maintaining biodegradation rates.

Segmenting the sensor and nozzle along the rod prevents decontamination agents from damaging sensors, ensuring accurate measurement and precise dosing.

High conductivity well fills create flow-focusing to treat contaminants in low hydraulic conductivity aquifers without high injection pressures.

A heat pipe-enhanced thermal desorption reactor transfers heat to contaminated soil via direct air contact and indirect conduction.

A soluble calcium composition stabilizes soil aggregates and enhances water infiltration through ion exchange mechanisms.

Dual floats position a suction tube between sensors to recover supernatant while preventing air or water aspiration into the pump.

Heating activator liquid lowers its density relative to groundwater, allowing buoyant upward migration to reach low-density contaminants above the water table.

Segmented fluorescence markers enable accurate concentration estimation of mixed purification agents in groundwater without increasing device complexity.

Self-sustaining smouldering combustion destroys non-aqueous phase liquids in situ, eliminating continuous external energy input and reducing operational costs.

Cross-linked hydrogel encapsulation stabilizes fungal ligninolytic enzymes for controlled release and effective breakdown of recalcitrant environmental pollutants.

Liquid carbon dioxide desorbs organic contaminants from fine-grained soils, eliminating dust and high energy consumption associated with thermal methods.