Claims
- 1. A method for increasing the effectiveness of a permeable treatment wall comprising introducing ultrasonic radiation in or near said permeable treatment wall using an in-well technique.
- 2. The method of claim 1 wherein the well comprises a slotted pipe or a solid pipe placed into the subsurface in or near the permeable treatment wall.
- 3. The method of claim 2 wherein the pipe is made of a material with a sound transfer velocity similar to that of ground water.
- 4. The method of claim 2 wherein the pipe is made of polyethylene.
- 5. A method for increasing the effectiveness of a permeable treatment wall comprising introducing ultrasonic radiation in or near said permeable treatment wall using a grooved rod.
- 6. A method for increasing the effectiveness of a permeable treatment wall comprising introducing ultrasonic radiation in or near said permeable treatment wall using a turned rod.
- 7. A permeable treatment wall comprising a well vertically extending into the wall, the well having a lining and an opening, and an ultrasonic radiation generating transducer in the well.
- 8. The permeable treatment wall of claim 7 wherein the lining comprises slots for ultrasonic radiation to pass through.
- 9. The permeable treatment wall of claim 7 wherein the lining has a sound transfer velocity approximately that of groundwater.
- 10. A permeable treatment wall comprising a rod vertically extending into the treatment wall, and an ultrasonic generator coupled to an upper end of the rod.
- 11. The permeable treatment wall of claim 10 wherein the rod includes a grooved or turned exterior surface.
ORIGIN OF THE INVENTION
The invention described herein was made in performance of work under a NASA contract and is subject to the provisions of Public Law 96-517 (35 U.S.C. .sctn.202) in which the contractor has elected not to retain title.
US Referenced Citations (7)