Influence of water matrix on benzophenone degradation by UV-irradiation
| Autor: | Minja Bogunović, Ester Heath, Ivana Ivančev-Tumbas, Aleksandra Tubić, Marjeta Česen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
fotodegradation
Mole ratio Batch reactor micropollutant General Chemistry Inorganic ions DOC 010402 general chemistry 01 natural sciences inorganic ions 6. Clean water 0104 chemical sciences lcsh:Chemistry chemistry.chemical_compound Water matrix chemistry lcsh:QD1-999 Dissolved organic carbon Benzophenone Degradation (geology) Irradiation Nuclear chemistry |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 84, Iss 6, Pp 623-632 (2019) |
| ISSN: | 1820-7421 0352-5139 |
| Popis: | This study presents the results from a bench-scale UV irradiation experiment of benzophenone (BP) in different water matrices. Despite the reported resistance of BP to UV-irradiation, it was successfully degraded in solution when intensively irradiated by UV light in a batch reactor for 4 h. In this way, it was possible to remove 56 and 45 % of 1.0 and 10 μg·L-1 of BP in Milli-Q water, respectively. The addition of a mixture of anions suppressed the degradation of BP at the lower concentration level by 20 %. The addition of a dissolved organic carbon (DOC) surrogate mixture (DOC:BP mole ratio of 3000:1) increased the degradation of BP in Milli-Q water (removal 80 %). At 1.0 μg·L-1 of BP and 1.0 mg·L-1 of DOC, removal was 70 %, while at 10 μg·L-1 of BP and 10 mg·L-1 of DOC, there was no observable difference in removal compared with the removal in Milli-Q water. The results show that both DOC and anions influence the photodegradation of BP. Furthermore, it was shown that the removal efficiency depends on the concentration of BP. These findings show the importance of a detailed characterisation of the water matrix in studies relating to the removal of micropollutants during UV irradiation. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI172028] |
| Databáze: | OpenAIRE |
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