Title

Using Ultrasound For Restoring Iron Activity In Permeable Treatment Walls

Abstract

The application of ultrasonic energy to rejuvenate iron surfaces in a permeable treatment wells to enhance/restore the rate of trichloroethylene (TCE) degradation is studied. Iron taken from all depths showed an improvement after field application of ultrasound. Rate constants improved from 21 to 67% compared to samples taken before ultrasound treatment. Exposure time and power used are both important aspects of treatment. As corrosion products and precipitates build up on the surface, the reaction with TCE is diminished because the unoccupied surface area is decreased. Ultrasound was demonstrated to remove corrosion products, precipitates, and other debris from the iron surface. This served to increase the available iron surface and improve the rate of the dehalogenation reaction. This is an abstract of a paper presented at the 221st ACS National Meeting (San Diego, CA 4/1-5/2001).

Publication Date

12-1-2001

Publication Title

ACS Division of Environmental Chemistry, Preprints

Volume

41

Issue

1

Number of Pages

1167-1172

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

23844471302 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/23844471302

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