iSOC™ is a specially designed, highly structured, microporous mass transfer device designed for use in enhanced groundwater remediation. The iSOC™, or in situ Submerged Oxygen Curtain, is based on Gas inFusion™ technology, which is patented world-wide. Essentially, this technology involves using hydrophobic, microporous hollow fibres to infuse groundwater with any gas. The iSOC™ unit is filled with these fibres. The desired gas is piped into the unit saturating the fibres, using a standard compressed gas cylinder and regulator arrangement. The fibres in the iSOC™ unit provide a large surface area to volume ratio to allow intimate contact between the gas and groundwater, which results in an ultra efficient mass transfer. This transfer of gas into the groundwater occurs without bubbles
Benefits
Greatly enhanced dissolved oxygen diffusion
Low operating and maintenance costs
Fast installation
Uses standard two-inch monitoring well
No power, pumps or permits required
No off-gases or hazardous by-products are produced
Not limited to the infusion of only oxygen into groundwater
Remediation Option
Perimeter barrier
iSOC™ units can be used to establish a perimeter dissolve gas barrier. A string of iSOC™ units would be placed in monitoring wells. After a period of time, a dissolved gas rich zone with enhanced biological activity would be achieved in and around these wells. This enhanced activity would accelerate the remediation of any contaminants that migrated through the zone.
Source treatment
iSOC™ units can be placed directly into a contaminant plume to increased the dissolved gas concentrations, in order to accelerate remediation.
Localised remediation
iSOC™ units can be used to accelerate the remediation of individual monitoring wells and their surroundings, by placing the unit directly in the monitoring well.
Contaminant Remediation
Increased concentrations of dissolved gases in groundwater have been shown to be effective in enhancing the remediation of numerous contaminants. Since the iSOC™ unit can be used to infuse almost any gas into groundwater, it can be effective in remediating many types of contaminants. The following table illustrates some of the dissolved gas concentrations that are achievable using the iSOC™.
