Remediation Technologies - Overview

IEG's technologies are suitable for the remediation of chlorinated solvents, petroleum hydrocarbons, creosote, pesticides and other more recalcitrant organic substances, as well as ammonia, nitrate, metals and other inorganics, by applying biological, chemical, or physical processes.

Patented in the UK, Europe and the USA, IEG's in situ soil air and groundwater circulation systems for the remediation and monitoring of soil and groundwater contamination include:

• IEG Multi-Level Sampling Wellâ„¢ (IEG MLSWâ„¢)
• IEG Vacuum Liquid Recovery Wellâ„¢ (IEG VLRWâ„¢)
• IEG Vacuum Vapour Extractionâ„¢ (IEG VVEâ„¢)
• IEG Soil Air Circulation-Vacuum Vapour Extractionâ„¢ (IEG SAC-VVEâ„¢)
• IEG Soil Air Circulation-Bioventingâ„¢ (IEG SAC-Bioventingâ„¢)
• IEG Coaxial Groundwater Circulation-Spargeâ„¢ (IEG CGC-Spargeâ„¢)
• IEG Vacuum Vaporiser Wellâ„¢ (IEG UVBâ„¢)
• IEG Soil Circular Flushing Wellâ„¢ (IEG SZBâ„¢)
• IEG Groundwater Circulation Wellâ„¢ (IEG GCWâ„¢)
• IEG Multi-Function Wellâ„¢ (IEG MFWâ„¢)
• IEG Compact Vacuum Stripperâ„¢ (IEG CVSâ„¢)
• IEG Granular Activated Carbon Adsorption Systemâ„¢ (IEG GAC-Sorbâ„¢)

The philosophy behind IEG's patented low-impact technologies fits exactly with the low environmental impact ethos of modern "sustainability requirements". IEG technology provides low energy, low noise and minimum intrusion options which can remediate sites more effectively and efficiently than conventionally applied techniques.

Our technologies can assist in adding value to derelict and contaminated land portfolios, assisting development to proceed without major ongoing disruption during development and/or remediating already developed and operating sites with minimum operational impact.

IEG systems are underpinned by a profound geological and hydrogeological knowledge, state-of-the-art proven engineering design and specially manufactured equipment. IEG's solutions deliver significant advantages over other in situ remediation methods offering potential for significant cost and time savings.

Quicker
• remediate much faster than other conventional techniques
• provide controlled, directed and accelerated remediation capability
Smaller
• compact designs require less space on-site
• minimal above-ground treatment facilities
Smarter
• treat contamination in situ by making the aquifer the treatment zone
• achieve simultaneous hydraulic containment and treatment
• extended spherical zone of influence around remediation well
• interlocking zones of influence to create a "virtual" hydraulic barrier
• simultaneous treatment of soil and groundwater in one well
• treatment train capability for physical, chemical and biological remediation.
Greener
• require low negative pressure (40-80mbars)
• low energy requirement
• deliver maximum treatment efficiency with minimum waste
• no groundwater abstraction required - no abstraction licence
• no effluent treatment plant required above ground - no discharge consent