Feasibility Study of In‐Well Vapor Stripping Using Airlift Pumping

Haim Gvirtzman*, Ori Gonen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

This study tests the feasibility of an aquifer remediation concept proposed by Gvirtzman and Gorelick (1992) that involves the removal of volatile organic compounds (VOCs) dissolved in ground water. The principal is 10 inject air into a well, creating airlift pumping, which is used as a means of in‐well vapor stripping. The partially treated water is diverted away from the well and infiltrates back to the water table, thus allowing remediation of a larger aquifer volume. A remediation well prototype, constructed in a laboratory aquifer model, was used to demonstrate the processes involved. The removal rates of trichloroethylene, toluene, and chloroform were monitored using eight triple‐level observation wells. The continuous decrease of VOC concentrations during the short‐term experiment has yielded macroscopic evidence that the process offers some promise. It was found that the flow field in the saturated zone. involving the continuous water circulation between the pumping well and the recharging area, caused temporal and spatial variation in remediation efficiency.

Original languageAmerican English
Pages (from-to)155-162
Number of pages8
JournalGroundWater Monitoring and Remediation
Volume15
Issue number4
DOIs
StatePublished - Nov 1995

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