Kinetic studies of catalytic ozonation of atrazine
Abstract
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.
Keywords
ozon;Pt-katalizator;atrazin;kinetika;odpadne vode;čiščenje odpadnih voda;ozone;Pt-catalyst;atrazine;water treatment;waste water;kinetics;
Data
| Language: | English |
|---|---|
| Year of publishing: | 2008 |
| Typology: | 1.01 - Original Scientific Article |
| Organization: | UM FKKT - Faculty of Chemistry and Chemical Engineering |
| UDC: | 543.3:544.4 |
| COBISS: |
12902678
|
| ISSN: | 0011-1643 |
| Views: | 788 |
| Downloads: | 72 |
| Average score: | 0 (0 votes) |
| Metadata: |
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Other data
| Secondary title: | Kinetičko istraživanje katalitičkog ozoniranja antrazina |
|---|---|
| Secondary abstract: | Cilj ovog rada bio je istražiti raspad atrazina ozoniranjem uzoraka modelne i izvorne pitke vode korištenjem Pt-katalizatora, te određivanje učinkovitosti tog katalizatora. Konstante brzine raspada atrazina katalitiziranim i nekataliziranim ozoniranjem su određene samo za uzorke modelne vode, a aktivacijska energija i red reakcije u odnosu na ozon su određeni za obje vrste uzoraka. Katalizirano ozoniranje utječe na raspad atrazina u uzorcima pitke vode. Tijekom ozoniranja praćene su koncentracije nekih metabolita u uzorcima modelne i pitke vode. Određena je toksičnost uzoraka originalne pitke i modelne vode na račiću Daphnia magna. |
| Secondary keywords: | ozon;Pt-katalizator;atrazin;kinetika;odpadne vode;čiščenje odpadnih voda; |
| URN: | URN:SI:UM: |
| Type (COBISS): | Scientific work |
| Pages: | str. 673-679 |
| Volume: | ǂVol. ǂ81 |
| Issue: | ǂno. ǂ4 |
| Chronology: | 2008 |
| ID: | 10846966 |
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