Degradation of tert-butyl alcohol in dilute aqueous solution by an O3/UV process.
This paper describes the degradation of tert-butyl alcohol (TBA) in dilute aqueous solution by an O3/UV process. The degradation process was investigated experimentally in a semi-batch reactor under various operational conditions, i.e., ozone gas (O3) dosage, UV light intensity, and water quality in terms of varying bicarbonate concentration. TBA was oxidized rapidly in the O3/UV system, and acetone, hydroxy-iso-butyraldehyde, and formaldehyde were identified as primary intermediates, whereas pyruvaldehyde and acetic, formic, pyruvic, and oxalic acids were generated as a result of further oxidation process. A good organic carbon balance was obtained, indicating that most reaction intermediates have been identified and quantified.
Garoma
Temesgen
T
Department of Civil and Environmental Engineering, San Diego State University, San Diego, California 92182, USA. temesgen.garoma@mwhsoft.com
Gurol
Mirat D
MD
D010083:Oxidants, Photochemical / Q000737:chemistry*; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry*; D014466:Ultraviolet Rays; D018508:Water Purification / Q000379:methods*; D020002:tert-Butyl Alcohol / Q000737:chemistry*
D010083:Oxidants, Photochemical; D010126:Ozone; D020002:tert-Butyl Alcohol