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What is in-situ chemical oxidation (ISCO)?

In-situ chemical oxidation (ISCO) is an environmental remediation technique where chemical oxidants such as persulfate, permanganate, or hydrogen peroxide are injected into contaminated soil and groundwater to destroy organic contaminants like TCE, PCE, and petroleum hydrocarbons in place — without excavation.

What contaminants can IET remediate?

IET specializes in TCE remediation, chlorinated remediation, and comprehensive environmental treatment. We remediate chlorinated solvents (TCE/trichloroethylene, PCE/perchloroethylene, DCE, vinyl chloride), petroleum hydrocarbons (BTEX, gasoline, diesel, MTBE), heavy metals (chromium, lead), NAPL, DNAPL, PAHs, creosote, and mixed contamination using ISCO, ISCR, bioremediation, EZVI, and ISGS technologies.

How long does environmental remediation take?

Remediation timelines vary by technology and site conditions. ISCO can achieve significant contaminant reduction in weeks to months. Enhanced bioremediation typically requires 2–5 years of active treatment. IET's patented ferric iron-activated persulfate provides sustained treatment lasting over 2 years to prevent contaminant rebound.

What states does IET provide environmental drilling services?

IET provides environmental and geotechnical drilling services nationwide including Pennsylvania, Ohio, North Carolina, South Carolina, Texas, Florida, New Jersey, New York, Virginia, Georgia, Tennessee, Indiana, Illinois, and more. IET operates 50+ specialized rigs including CME, Geoprobe, AMS, and barge drilling equipment.

Memphis HRC/Fe with EZVI Enhancement

Memphis, TN

May 2008

HRC + EZVI

Enhanced Hydrogen Release with EZVI

An environmental consulting firm contracted IET for advanced enhanced reductive dechlorination combining traditional HRC/HRC-X technology with nano-scale EZVI enhancement. The program included complete vitamin complex and patented injection technology licensing.

Materials Package

Hydrogen Release Compounds

• HRC (Long-term release): 900 lbs
• HRC-X (Enhanced): 900 lbs
• Total hydrogen donors: 1,800 lbs

Zero Valent Iron

• ZVI powder: 4,070 lbs
• EZVI material: 450 gallons
• Combined micro/nano iron delivery

Vitamins & Nutrients

• Vitamin B2: 13,046 grams
• Vitamin B12: 1,136 grams
• Yeast Extract: 280 lbs
• Complete nutrient package

Support Compounds

• Sulfite: 128 lbs
• Calcium Propionate: 430 lbs
• Nitrogen: 12,790 units

Project Details

Client

Environmental Consulting Firm

Location

Memphis, Tennessee

Duration

1.5 days DPT rig, 1.5–2 days injection operations

Special License

Patented injection technology licensing included

Completion Date

May 2008