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A Novel Energy Efficient Plasma Chemical Process for the Destruction of Volatile Toxic Compounds

Description: The objective is to develop a novel plasma chemical process for the destruction of low concentrations (below several percent) of toxic volatile compounds from contaminated air streams. Such contaminated air streams are encountered in air stripping of highly-contaminated water and soil, and also in the incineration of combustible hazardous wastes. Our technique is based on the efficient dissociation of molecules via enhanced electron attachment to highly-excited states of the molecules produced … more
Date: June 1, 2000
Creator: Pinnaduwage, Lal A.
Partner: UNT Libraries Government Documents Department
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A NOVEL ENERGY EFFICIENT PLASMA CHEMICAL PROCESS FOR THE DESTRUCTION OF VOLATILE TOXIC COMPOUNDS

Description: Destruction of low-concentrations (below several percent) of toxic volatile compounds from contaminated air stream is encountered at the DOE waste sites in the following instances: (i) off-gases resulting from air-stripping of highly-contaminated water and soil (contaminated with DNAPLs, VOCs, etc), (ii) effluent from the incineration of highly-concentrated combustible hazardous wastes. If the contaminated air stream has concentrations of a few parts per million (ppm) then passive methods, such… more
Date: December 31, 2000
Creator: Pinnaduwage, Lal A.
Partner: UNT Libraries Government Documents Department
open access

Novel Analytical Techniques Based on an Enhanced Electron Attachment Process

Description: Sensitive and selective detection of dense non-aqueous liquids (DNAPL), volatile organic compounds (VOC), and other organics, such as polychlorinated biphenyls (PCB), is an area of importance to the DOE's environmental restoration program. Current negative-ion based analytical methods for the detection of these compounds rely on their propensity to form negative ions (in their ground electronic states). However, for compounds with smaller electron capture cross sections, including PCBs with few… more
Date: June 1, 1999
Creator: Pinnaduwage, Lal A. & Buchanan, Michelle V.
Partner: UNT Libraries Government Documents Department
open access

A Novel Energy-Efficient Plasma Chemical Process for the Destruction of Volatile Toxic Compounds

Description: Removal of low-concentrations (below several percent) of volatile toxic compounds (VTCs) from contaminated air streams is encountered at DOE waste sites in two instances: (i) Off-gases resulting from air-stripping of contaminated soil and water. (ii) Effluent from the incineration of highly-concentrated combustible hazardous wastes The objective of our research program is to develop a novel plasma chemical process for the destruction of VTC's in low-concentration waste streams.
Date: June 1, 1999
Creator: Pinnaduwage, Lal A. & Ma, Cheng-YU
Partner: UNT Libraries Government Documents Department
open access

Novel Analytical Techniques Based on a Enhanced Electron Attachment Process - Final Report - 09/15/1996 - 06/15/2001

Description: Present analytical methodologies for the detection of chlorinated compounds important to DOE's environmental restoration program, such as DNAPLs [dense non-aqueous phase liquids - such as carbon tetrachloride, trichloroethylene (TCE), perchloroethylene (PCE)], polychlorinated biphenyls (PCB), and others, involve detection by negative-ion-based analytical techniques. These techniques exploit electron attachment to analyte molecules in their ground electronic states, and are limited to particular… more
Date: June 15, 2001
Creator: Pinnaduwage, Lal A. & Buchanan, Michelle V.
Partner: UNT Libraries Government Documents Department
open access

Novel Analytical techniques based on an enhanced electron attachment process

Description: The objective of this research program is to develop new analytical techniques based on the large cross sections associated with dissociative electron attachment to highly-excited molecular states. Such highly-excited states can be populated by using fixed frequency lasers or in glow discharges via excitation transfer from high-lying, metastable states of rare gases. It is anticipated that these studies will lead to negative-ion based analytical techniques for the detection of DNAPLs (dense non… more
Date: June 1, 2000
Creator: Pinnaduwage, Lal A.; Buchanan, Michelle V. & B., Hurst Gregory
Partner: UNT Libraries Government Documents Department
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