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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.

Enhanced Bioremediation Program

Newtown, PA

September 2007

$77,998

Project Overview

Enhanced bioremediation program utilizing zero valent iron (ZVI) and molasses injection across two treatment areas for an environmental consultant. The project employed IET's patented injection systems with direct push technology (DPT) for precise subsurface delivery.

Treatment Approach

Area 1: ZVI & Molasses

16 injection points treating depth interval 9-41 feet bgs
1,500 gallons of 2% molasses solution
300 lbs of 2-6 micron ZVI powder (micro-spheres)
Variable distribution across depth intervals (14-16' to 39-41')

Area 3: Molasses & Whey

16 injection points at 10-30 feet bgs
750 gallons of 2% molasses and milk whey blend
Targeted intervals at 10-12', 16-18', and 22-24'

Patented Technology: Project utilized IET's exclusive license for patented substrate delivery technology.

Project Details

Client

Environmental Consulting Firm

Location

Newtown, Pennsylvania

Completion Date

September 2007

Technology

Enhanced Bioremediation (ZVI/Molasses/Whey)

ZVI Type

2-6 micron micro-spheres

Treatment Areas

Two distinct injection zones