Study on US/O3 mechanism in p-chlorophenol decomposition / 浙江大学学报(英文版)(B辑:生物医学和生物技术)
Journal of Zhejiang University. Science. B
;
(12): 553-558, 2005.
Article
in English
| WPRIM
| ID: wpr-249173
ABSTRACT
Study on the effects of sonolysis, ozonolysis and US/O3 system on the decomposition of p-chlorophenol in aqueous solutions indicated that in the cases of US/O3 system, individual ozonolysis and sonolysis, the decomposition rate of p-chlorophenol reached 78.78%, 56.20%, 2.79% after a 16-min reaction while its CODcr (chemical oxygen demand) removal rate was 97.02%, 62.17%, 3.67% after a 120-min reaction. The decomposition reaction of p-chlorophenol follows pseudo-first-order kinetics. The enhancement factors of p-chlorophenol and its COD(cr) under US/O3 system reached 63% and 237% respectively. The main intermediates during the decomposition include catechol, hydroquinone, p-benzoquinone, phenol, fumaric acid, maleic acid, oxalic acid and formic acid. The decomposition mechanism of p-chlorophenol was also discussed.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Ozone
/
Radiation Effects
/
Solutions
/
Sonication
/
Computer Simulation
/
Water
/
Kinetics
/
Chemistry
/
Chlorophenols
/
Water Purification
Type of study:
Prognostic study
Language:
English
Journal:
Journal of Zhejiang University. Science. B
Year:
2005
Type:
Article
Similar
MEDLINE
...
LILACS
LIS