Emerging technology summary: Destruction of organic contaminants in air using advanced ultraviolet flashlamps

Technical Report · Thu Jul 01 00:00:00 EDT 1993

OSTI ID:6912467

The summary describes a new process for photo-oxidation of volatile organic compounds (VOCs) in air using an advanced ultraviolet (UV) source, and a pulsed xenon flashlamp. The flashlamps have greater output at 200 to 250 nm than medium-pressure mercury lamps at the same power and, therefore, cause much more rapid direct photolysis of VOCs. The observation of quantum yields greater than unity indicate the involvement of chain reactions for trichloroethene (TCE), perchloroethene (PCE), 1,1-dichloroethylene (DCE), CHCl3, and CH2Cl2. TCE was examined more closely because of its widespread occurrence and very high destruction rate.

• Research Organization: Environmental Protection Agency, Cincinnati, OH (United States). Center for Environmental Research Information
• OSTI ID: 6912467
• Report Number(s): PB-94-194479/XAB; EPA-540/SR-93/516
• Resource Relation: Other Information: See also PB--93-205383
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AROMATICS
AIR POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TECHNOLOGY ASSESSMENT
ULTRAVIOLET RADIATION
CONTROL
ELECTROMAGNETIC RADIATION
EQUIPMENT
ORGANIC COMPOUNDS
POLLUTION CONTROL
RADIATIONS
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)