×

Process for preventing release of contamination from an underground storage tank field

  • US 6,116,815 A
  • Filed: 01/03/1997
  • Issued: 09/12/2000
  • Est. Priority Date: 01/05/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for preventing release of contamination from a source of potential contamination in a containment area from migrating into surrounding geological formations and groundwater outside of the containment area, the process including the steps of:

  • providing a layer of low permeable material defining the containment area, said lower permeable layer of material providing a hydraulic barrier between the containment area and the surrounding geological formations and groundwater;

    providing a first set of pipes, in fluid communication with the containment area, horizontally positioned below said source of potential contamination in the containment area;

    providing a second set of pipes, in fluid communication with the containment area, horizontally positioned above said source of potential contamination in the containment area;

    injecting air in said first set of pipes for providing air flow which passes through said containment area to strip out volatile and semi-volatile components of the contamination;

    collecting said air flow and vapor of said volatile and semi-volatile components in said second set of pipes; and

    collecting free product contamination in said first set of pipes when said contamination is of a significant amount.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×