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Environmental Engineering Research 2006;11(1): 28-32. DOI: https://doi.org/10.4491/eer.2006.11.1.028
KINETICS OF ATRAZINE OXIDATION BY UV RADIATION AND OXALATE ASSISTED H2O2/UV PROCESSES
Hyun Jin Choi, Jong Duck Choi, Hyun Kab Kim, and Tae Jin Lee
Department of Environmental Engineering, Seoul National University of Technology, 172, Gongneung-dong, Nowon-gu, Seoul, 139-743, KOREA
Corresponding Author: Tae Jin Lee ,Tel: +82-2-970-6614, Fax: +82-2-971-5776, Email: leetj@snut.ac.kr
Received: May 8, 2005;  Accepted: January 8, 2006.
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ABSTRACT
The degradation of atrazine was explored using UV alone, H2O2/UV, oxalate/UV and oxalate-assisted H1O2/UV. The addition of oxalate to the H2O2/UV (oxalate-assisted H2O2/UV) process was the most effective method for the degradation of atrazine. The overall kinetic rate constant was split into the direct oxidation due to photolysis and that by the radicals from hydrogen peroxide or oxalate. In semi-empirical terms, the initial concentration of hydrogen peroxide had a greater contribution than that of oxalate for atrazine oxidation.
Keywords: photolysis | oxalate | hydrogen peroxide | atrazine
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