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Kinetic Studies of Catalytic Ozonation of Atrazine

Brigita Tepuš ; Ptuj Municipal Service Corporation, Ptuj, Slovenia
Marjana Simonič ; Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia

Sažetak

The aim of our work was to degrade atrazine by the ozone treatment of both a model and the
original drinking water samples, using Pt-catalyst, and to evaluate the performance of this catalyst.
The rate constant for the reaction of atrazine with ozone was determined in the model water
sample. The activation energies and the reaction orders of ozone decomposition were determined
in both the model and the drinking water samples. Ozone treatment using Pt-catalyst has
some influence on the loss of atrazine in the sources of drinking water. The concentration of
some metabolites in the model and drinking water was observed during ozone treatment. The
toxicity of atrazine to crustacean Daphnia magna in the original drinking water and in the
ozone treated water samples was also assessed.

Ključne riječi

ozone; Pt-catalyst; atrazine; water; kinetics

Hrčak ID:

31195

URI

https://hrcak.srce.hr/31195

Datum izdavanja:

31.12.2008.

Posjeta: 1.487 *