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A system is provided for producing an oxidizing zone within a saturated zone of an aquifer for in-situ decontamination of groundwater carrying contaminants in a plume wholly located below a water table in said saturated zone of said aquifer. The system comprises a source of gas for providing a gas c

A system is provided for producing an oxidizing zone within a saturated zone of an aquifer for in-situ decontamination of groundwater carrying contaminants in a plume wholly located below a water table in said saturated zone of said aquifer. The system comprises a source of gas for providing a gas capable of producing an oxidizing environment in the groundwater which can oxidize the contaminant to purify the groundwater and the aquifer. Gas injectors are connected to the source of gas, for injecting the gas into the groundwater below the plume at a gas injection rate, thereby producing the oxidizing environment in the groundwater. Auxiliary apparatus is provided for testing decomposition of the contaminants in the oxidizing environment and for determining the gas injection rate.

대표청구항 ▼

A system for producing an oxidizing zone within a saturated zone of an aquifer for in-situ decontamination of groundwater carrying contaminants in a plume wholly located below a water table in said saturated zone of said aquifer, said system comprising: a source of gas for providing a gas capable of

A system for producing an oxidizing zone within a saturated zone of an aquifer for in-situ decontamination of groundwater carrying contaminants in a plume wholly located below a water table in said saturated zone of said aquifer, said system comprising: a source of gas for providing a gas capable of producing an oxidizing environment in said groundwater which can oxidize said contaminant to purify said groundwater and said aquifer; gas injector means, connected to said source of gas, for injecting said gas into said groundwater below said plume at a gas injection rate, said gas injection rate being selected to limit the advance of said plume in said aquifer, said gas injected at said gas injection rate producing said oxidizing environment in said groundwater for purifying said groundwater and said aquifer without removing said groundwater from said aquifer; and means for determining said gas injection rate including means for simulating said saturated zone of said aquifer using a water sample of said groundwater and a sample of soil, said samples being taken from said saturated zone, and means for applying a test gas to said samples for testing decomposition of said contaminants.