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Soil Venting
and Groundwater Treatment


Soil Venting Technology
Soil venting is an innovative technology for removing organic contaminants to remediate polluted soil zones. The organic contaminants can be in the soil in three different zones: as free "product" in pools or residual globules, dissolved in the groundwater, or as vapors in the vadose zone.

Soil venting directly deals with the free product and the organic vapors in the vadose zone by applying a vacuum through wells and extracting the air in the contaminated zone.

 
 

Service Applications:

   * Soil Venting
   * Free Product Removal
   * Bio-Venting/Air Injection
   * Spray Aeration Vacuum Extraction
   * Bio-Slurping - Dual Phase Extraction
   * Soil Vapor Extraction (SVE) the RSI Way


Ground Water Clean up

Soil venting also deals indirectly with groundwater contamination, by removing the overlying free product and vapors, promoting transfer of the contaminants into the vadose zone, where they are removed through the extraction wells.

The predominant treatment for removing high contaminant concentrations found in extracted groundwater has been a combination of air stripping followed by activated carbon polishing prior to discharge.

Conventional air strippers require a large air-to-water flow ratio to achieve adequate groundwater treatment objectives. Although removal of the groundwater is an effective plume containment mechanism, this is hardly an efficient means for treating groundwater.

RSI’s (S)pray (A)eration (V)acuum (E)xtraction (S.A.V.E.™) system incorporates the basic principles of air stripping with an innovative new twist.

Service Applications:
  * Spray Aeration Vacuum Extraction
  * Bio-Slurping
  * Dual Phase Extraction (DPE)
  * Air Injection
 
  
                                                                   
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