Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes
Sulphonamides (SAs) are one of the most frequently detected anthropogenic micropollutants in the aquatic environment and their presence in it may pose a threat to living organisms. The aim of the study was to determine susceptibility of selected sulphonamides, i.e. sulfadiazine (SDZ) and sulfamethaz...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2021-03-01
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| Series: | Archives of Environmental Protection |
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| Online Access: | https://journals.pan.pl/Content/119452/PDF/Archives%20vol%2047%20no%201_pp10_19_pop.pdf |
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| author | Natalia Lemańska Ewa Felis Marzena Poraj-Kobielska Zuzanna Gajda-Meissner Martin Hofrichter |
| author_facet | Natalia Lemańska Ewa Felis Marzena Poraj-Kobielska Zuzanna Gajda-Meissner Martin Hofrichter |
| author_sort | Natalia Lemańska |
| collection | DOAJ |
| description | Sulphonamides (SAs) are one of the most frequently detected anthropogenic micropollutants in the aquatic environment and their presence in it may pose a threat to living organisms. The aim of the study was to determine susceptibility of selected sulphonamides, i.e. sulfadiazine (SDZ) and sulfamethazine (SMZ), to degradation in the ozonation process and in enzymatic oxidation by unspecific peroxygenase extracted from Agrocybe aegerita mushroom ( AaeUPO). Moreover, the acute toxicity of the aqueous solution of the selected sulphonamides (SMZ and SDZ) before and after mentioned treatment processes were studied on the freshwater crustacean Daphnia magna. Initial concentrations were equal to 2×10-5 M for sulfadiazine and 1.8×10-5 M for sulfamethazine. The percentage of transformation for the O3 process was at the level 95% for both SDZ and SMZ (after 10 s of the process), whilst enzymatic oxidation of SDZ and SMZ by AaeUPO caused transformation efficiencies at the levels of 97% and 94% (after 1 minute of the process), respectively. The second order rate constants of selected sulfonamides with molecular ozone and fungal peroxidase were also determined in the research. EC50 (median effective concentration) values from toxicity test on D. magna were found in the range from 14.6% to 37.2%, depending on the type of the process. The conducted oxidation processes were efficient in degradation of selected sulphonamides. The toxicity of the mixtures before and after treatment was comparable and did not change significantly. The research have shown that biological processes are not always safer for living organisms compared to the chemical processes. |
| first_indexed | 2024-03-09T14:11:17Z |
| format | Article |
| id | doaj.art-d98b9515a5464dbbbd06e8bacc061c87 |
| institution | Directory Open Access Journal |
| issn | 2083-4772 2083-4810 |
| language | English |
| last_indexed | 2024-03-09T14:11:17Z |
| publishDate | 2021-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Environmental Protection |
| spelling | doaj.art-d98b9515a5464dbbbd06e8bacc061c872023-11-29T10:45:52ZengPolish Academy of SciencesArchives of Environmental Protection2083-47722083-48102021-03-01vol. 47No 11018https://doi.org/10.24425/aep.2021.136443Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processesNatalia Lemańska0Ewa Felis1Marzena Poraj-Kobielska2Zuzanna Gajda-Meissner3Martin Hofrichter4EkoNorm Sp. z o.o., Katowice, PolandThe Silesian University of Technology, Gliwice, PolandTechnische Universität Dresden, GermanySchool of Life Sciences, Heriot-Watt University, Edinburgh, United KingdomTechnische Universität Dresden, GermanySulphonamides (SAs) are one of the most frequently detected anthropogenic micropollutants in the aquatic environment and their presence in it may pose a threat to living organisms. The aim of the study was to determine susceptibility of selected sulphonamides, i.e. sulfadiazine (SDZ) and sulfamethazine (SMZ), to degradation in the ozonation process and in enzymatic oxidation by unspecific peroxygenase extracted from Agrocybe aegerita mushroom ( AaeUPO). Moreover, the acute toxicity of the aqueous solution of the selected sulphonamides (SMZ and SDZ) before and after mentioned treatment processes were studied on the freshwater crustacean Daphnia magna. Initial concentrations were equal to 2×10-5 M for sulfadiazine and 1.8×10-5 M for sulfamethazine. The percentage of transformation for the O3 process was at the level 95% for both SDZ and SMZ (after 10 s of the process), whilst enzymatic oxidation of SDZ and SMZ by AaeUPO caused transformation efficiencies at the levels of 97% and 94% (after 1 minute of the process), respectively. The second order rate constants of selected sulfonamides with molecular ozone and fungal peroxidase were also determined in the research. EC50 (median effective concentration) values from toxicity test on D. magna were found in the range from 14.6% to 37.2%, depending on the type of the process. The conducted oxidation processes were efficient in degradation of selected sulphonamides. The toxicity of the mixtures before and after treatment was comparable and did not change significantly. The research have shown that biological processes are not always safer for living organisms compared to the chemical processes.https://journals.pan.pl/Content/119452/PDF/Archives%20vol%2047%20no%201_pp10_19_pop.pdfsulphonamidesozonationunspecific aromatic peroxygenasesecond order rate constantsd. magnatoxicity |
| spellingShingle | Natalia Lemańska Ewa Felis Marzena Poraj-Kobielska Zuzanna Gajda-Meissner Martin Hofrichter Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes Archives of Environmental Protection sulphonamides ozonation unspecific aromatic peroxygenase second order rate constants d. magna toxicity |
| title | Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| title_full | Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| title_fullStr | Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| title_full_unstemmed | Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| title_short | Comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| title_sort | comparison of sulphonamides decomposition efficiency in ozonation and enzymatic oxidation processes |
| topic | sulphonamides ozonation unspecific aromatic peroxygenase second order rate constants d. magna toxicity |
| url | https://journals.pan.pl/Content/119452/PDF/Archives%20vol%2047%20no%201_pp10_19_pop.pdf |
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