Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation
The feasibility of ozonation process for 2-mercaptobenzothiazole (2-MBT) removal follows from results of ozonation of the model wastewater. Total removal of 2-MBT was observed after 20 minutes of ozonation. Very good reproducibility of repeated ozonation trials including sampling and analysis was ob...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/173010 |
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| author | Jan Derco Angelika Kassai Michal Melicher Jozef Dudas |
| author_facet | Jan Derco Angelika Kassai Michal Melicher Jozef Dudas |
| author_sort | Jan Derco |
| collection | DOAJ |
| description | The feasibility of ozonation process for 2-mercaptobenzothiazole (2-MBT) removal follows from results of ozonation of the model wastewater. Total removal of 2-MBT was observed after 20 minutes of ozonation. Very good reproducibility of repeated ozonation trials including sampling and analysis was observed. However, the majority of dissolved organic carbon (DOC) and chemical oxygen demand (COD) remained in the reaction mixture. Benzothiazole (BT) and 2-hydroxybenzothiazole (OBT) intermediates were identified during degradation of 2-MBT with ozone. In addition to the above benzothiazole derivatives, the creation of some other organic compounds follows from results of mass balance. The best fits of experimental data were obtained using the first kinetic model for 2-MBT and zero-order kinetic model for COD and DOC. The reaction time of 60 minutes can be considered as effective with regard to controlled oxidation in order to increase a portion of partially oxidized substances. Higher biodegradability and lower toxicity of ozonation products on respiration activity of activated sludge microorganisms was observed at higher ozonation time. |
| format | Article |
| id | doaj-art-db7729ad51ed4952bb451d6a3a22bc6c |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-db7729ad51ed4952bb451d6a3a22bc6c2025-08-20T03:24:20ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/173010173010Removal of the 2-Mercaptobenotiazole from Model Wastewater by OzonationJan Derco0Angelika Kassai1Michal Melicher2Jozef Dudas3Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaWater Research Institute, Nábr. Arm. Gen. L. Svobodu 5, 812 49 Bratislava, SlovakiaFaculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaFaculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, SlovakiaThe feasibility of ozonation process for 2-mercaptobenzothiazole (2-MBT) removal follows from results of ozonation of the model wastewater. Total removal of 2-MBT was observed after 20 minutes of ozonation. Very good reproducibility of repeated ozonation trials including sampling and analysis was observed. However, the majority of dissolved organic carbon (DOC) and chemical oxygen demand (COD) remained in the reaction mixture. Benzothiazole (BT) and 2-hydroxybenzothiazole (OBT) intermediates were identified during degradation of 2-MBT with ozone. In addition to the above benzothiazole derivatives, the creation of some other organic compounds follows from results of mass balance. The best fits of experimental data were obtained using the first kinetic model for 2-MBT and zero-order kinetic model for COD and DOC. The reaction time of 60 minutes can be considered as effective with regard to controlled oxidation in order to increase a portion of partially oxidized substances. Higher biodegradability and lower toxicity of ozonation products on respiration activity of activated sludge microorganisms was observed at higher ozonation time.http://dx.doi.org/10.1155/2014/173010 |
| spellingShingle | Jan Derco Angelika Kassai Michal Melicher Jozef Dudas Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation The Scientific World Journal |
| title | Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation |
| title_full | Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation |
| title_fullStr | Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation |
| title_full_unstemmed | Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation |
| title_short | Removal of the 2-Mercaptobenotiazole from Model Wastewater by Ozonation |
| title_sort | removal of the 2 mercaptobenotiazole from model wastewater by ozonation |
| url | http://dx.doi.org/10.1155/2014/173010 |
| work_keys_str_mv | AT janderco removalofthe2mercaptobenotiazolefrommodelwastewaterbyozonation AT angelikakassai removalofthe2mercaptobenotiazolefrommodelwastewaterbyozonation AT michalmelicher removalofthe2mercaptobenotiazolefrommodelwastewaterbyozonation AT jozefdudas removalofthe2mercaptobenotiazolefrommodelwastewaterbyozonation |