Destruction of pollutants in water with ozone in combination with ultraviolet radiation. 1. General principles and oxidation of tetrachloroethylene

Journal Article · Sun Aug 01 00:00:00 EDT 1982 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00102a004· OSTI ID:6858047

Peyton, G R; Huang, F Y; Burleson, J L; Glaze, W H

Oxidation of organic micropollutants in water is significantly faster with ozone in combination with ultraviolet radiation than one would predict on the basis of the individual processes involved. A formalism for the analysis of O/sub 3//UV kinetics is presented in which substrate decay is represented as a linear combination of terms representing purging, ozonation, photolysis, and photolytic ozonation (O/sub 3//UV). For the substrate tetrachloroethylene (TCE) the process is overall first order in TCE. With a continuously sparged stirred tank reactor, times for the elimination of 63% of the substrate (T/sub 1/) have values of 100, 26, 20, and 7 min for purging, ozonation only, photolysis only, and photolytic ozonation, respectively. Significant retardation of O/sub 3//UV kinetics is observed in a lake-water matrix as opposed to purified water, possible due to a radical intermediate involved in the O/sub 3//UV process.

• Research Organization: North Texas State Univ., Denton
• OSTI ID: 6858047
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 16:8; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600 -- Radiation Chemistry
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKENES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
ELECTROMAGNETIC RADIATION
HYDROCARBONS
KINETICS
ORGANIC COMPOUNDS
OXIDATION
OZONE
POLLUTION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTION KINETICS
ULTRAVIOLET RADIATION
WATER POLLUTION