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
Vacuum cleaner
Network attachment for IMS systems for legacy CS UE with home node B access
Conversion of 5-(chloromethyl)-2-furaldehyde into 5-methyl-2-furoic acid and derivatives thereof
Avalanche photodiodes having accurate and reproductible amplification layer
Method for manufacturing non-volatile memory device, non-volatile memory element, and non-volatile memory device
Substrate and patterning device for use in metrology, metrology method and device manufacturing method
Printing system, information processing apparatus, print job processing method, information processing method, program, and storage medium
  Randomly Featured Patents
Lightbar modules
Surface acoustic wave device
Multi-purpose utility vehicle
Device, method, and recording medium for processing a document having document data and a set of related data
Method of manufacturing thin film and pretreating method thereof
Fender structure assemblies for vehicles
Multi-grip dumbbell
Apparatus for removing residual stored material
Shoulder- and neck holder
Thermoplastic polyester compositions having improved impact properties