Methods and systems for recovering subsurface materials

Details Methods and systems for recovering subsurface materials Methods and systems for recovering subsurface materials

E - Fixed Constructions

21

B

E21B 43/18 (2006.01) B09C 1/00 (2006.01) E21B 43/12 (2006.01)

Patent

CA 2093195

Methods and systems for recovering groundwater, gases and vapors from subsurface locations in a single, integrated operation by applying a vacuum to groundwater recovery wells are disclosed. Selective recovery of specific contaminants from zones of interest containing high levels of those contaminants is achieved by manipulating the local water table level. Groundwater recovery systems may also utilize eductor systems having venturi nozzles that create a vacuum networked. A plurality of such recovery wells operated using eductor systems may be operated by a single pump at or above grade level. In this fashion, a network of recovery wells may be operated using a single pump and control system. The recovery methods and systems of the present invention are preferably utilized in association with known contaminant removal systems to provide complete removal of contaminants and improved remediation efficiencies.

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