SGR테크

Environmental products

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Persulfate (PDS) and Radical Initiator (SGR-RI)

Technology Status

• Radical initiator(SGR-RI) is increasing contaminant removal efficiency by inhibiting self-decomposition and facilitating radical conversion of oxidant Persulfate(PDS).
• The research project, 'Development of Advanced In Situ Chemical Oxidation (AISCO) Technology using Dual Packer and Radical Initiator,' was developed and selected among the top 20 outstanding achievements in environmental technology development in 2021.

Collaborative Research and Development

Patent (No. 10-2215046)

Enhancing radical generation efficiency
using Radical initiator

→ Enhancement of oxidant utilization efficiency

Enhancing self-decomposition reduction rate
using Radical initiator

→ Enhancement oxidant delivery efficiency

Dual Packer System for Maximizing In-Situ Remediation Efficiency

Technology Status

• Subsurface injection devices that increase remediation efficiency by spraying oxidants by selectively installing them at contaminated depths.
• Subsurface Multi-Injection Device

- Stage 1 (Upper): Injection of Oxidant and Radical Initiator

- Stage 2 (Lower): Spray of Air and Pressurized water
• Air (pressurized water) serves to prevent the downward migration of oil substances and oxidants in the unsaturated zone, induced by gravity.
• Dual packer allows selective installation in contaminated depths within the subsurface → Maximizing oxidant delivery efficiency, reducing oxidant usage, and reducing environmental risk and enhancing economic feasibility

The Operating Principle of the Dual Packer Equipment for In Situ Remediation.

Dual Packer System composition

Dual Packer

Oxidant Injection Device

Patent (No. 10-2173993)

Patent (No. 10-2352211)

Field Application

SGR Engineering for Nature