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
Client-managed group communication sessions within a wireless communications system
Shoe upper
Pyrrolidine derivatives, pharmaceutical compositions containing the same, and methods of using the same
Piano keyboard with key touch point detection
Memory device and semiconductor device
Method and device for synthesizing image
Variety corn line NPAA2675
  Randomly Featured Patents
Device for measuring and/or testing of components of optical and/or electrical networks and a lift device used for this purpose
Chemical-mechanical polishing (CMP) apparatus
Rod guide and seal system for gas filled shock absorbers
Ossicle prosthesis
Method and reagent for determining LD-1 isoenzyme
Circuit architecture and method for switching sensor resolution
Reservation management system and method
Control system for a vehicle transmission to prevent a stopped vehicle from rolling on a slope
System and method for delivering statistically scheduled advertisements
Semiconductor integrated circuit for communication