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Methods and apparatuses for reagent delivery, reactive barrier formation, and pest control

Patent ·
OSTI ID:874563
 [1];  [2];  [3]
  1. Pasco, WA
  2. Aiken, SC
  3. Richland, WA
+ Show Author Affiliations
A reagent delivery method includes positioning reagent delivery tubes in contact with soil. The tubes can include a wall that is permeable to a soil-modifying reagent. The method further includes supplying the reagent in the tubes, diffusing the reagent through the permeable wall and into the soil, and chemically modifying a selected component of the soil using the reagent. The tubes can be in subsurface contact with soil, including groundwater, and can be placed with directional drilling equipment independent of groundwater well casings. The soil-modifying reagent includes a variety of gases, liquids, colloids, and adsorbents that may be reactive or non-reactive with soil components. The method may be used inter alia to form reactive barriers, control pests, and enhance soil nutrients for microbes and plants.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
6,416,250
OSTI ID:
874563
Country of Publication:
United States
Language:
English

References (8)

Enhancement of In Situ Bioremediation of BTEX-Contaminated Ground Water by Oxygen Diffusion from Silicone Tubing journal February 1998
Technology Update: Novel barrier remediates chlorinated solvents journal November 1998
Permeation, diffusion and solution of gases in organic polymers journal January 1939
A Method for Passive Release of Solutes from an Unpumped Well journal November 1995
Flow of gases through polyethylene journal April 1961
The Permeability of Different Rubbers to Gases and Its Relation to Diffusivity and Solubility journal November 1946
The Use of Sulphur Hexafluoride as a Conservative Tracer in Saturated Sandy Media journal September 1993
Activated diffusion in membranes journal January 1939

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Related Subjects

/405/
adsorbents
alia
apparatuses
barrier
barriers
casings
chemically
colloids
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including
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liquids
method
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microbes
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non-reactive
nutrients
permeable
pest
pests
placed
plants
positioning
reactive
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selected
soil
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subsurface
supplying
tubes
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wall