Resources Contact Us Home
Remediation method

Image Number 4 for United States Patent #6464005.

A method of remediating a site of earth and groundwater contamination includes the steps of drilling at least one injection well, and preferably a plurality of injection wells, into the groundwater in a contaminated area. At least one, and preferably a plurality of extraction wells, are drilled into the earth above the groundwater, the vadose zone, in the contaminated area. The surface of the earth above the contaminated area is sealed, such as by a layer of concrete, asphalt, or plastic sheeting. Air and nutrients are injected into the contaminated area through the injection wells. The air is injected on a substantially continuous basis while the nutrients are injected on a batch basis. Air and vapor is extracted on a substantially continuous basis from the contaminated area by the extraction wells, which may be either vertically or horizontally positioned.

  Recently Added Patents
System and method for redirected firewall discovery in a network environment
Method of fabricating solid electrolytic capacitor and solid electrolytic capacitor
System and method for configuring a direct lift control system of a vehicle
Information-provision control method, information reproduction system, information-provision apparatus, information reproduction apparatus and information-presentation control program
White light emitting lamp and white LED lighting apparatus including the same
Method and apparatus for detecting an intermittent path to a storage system
Washing machine
  Randomly Featured Patents
Method for mechanical cleaning of textiles or solid objects comprising encapsulated enzymes
Multiplexing spectrum interference optical coherence tomography
Ice builder and control system therefor
DDS-PLL method for frequency sweep
Compacting unit for groups of flat products arranged side by side on edge
Method of forming a capacitor
Valve assembly
Cashless gaming system: apparatus and method
Using high-level language functions in HDL synthesis tools
Data cable powered sensor fixture