Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications
This paper presents a hybrid advanced oxidation process (AOP) based on sonocavitational activation of persulfate (PS) for degradation of 1,4-dioxane during wastewater treatment. Application of sono-cavitation effectively convert PS to radical species demonstrating synergistic effect by increasing th...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Water Resources and Industry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212371722000166 |
| _version_ | 1818533352839315456 |
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| author | Shirish Sonawane Kirill Fedorov Manoj P. Rayaroth Grzegorz Boczkaj |
| author_facet | Shirish Sonawane Kirill Fedorov Manoj P. Rayaroth Grzegorz Boczkaj |
| author_sort | Shirish Sonawane |
| collection | DOAJ |
| description | This paper presents a hybrid advanced oxidation process (AOP) based on sonocavitational activation of persulfate (PS) for degradation of 1,4-dioxane during wastewater treatment. Application of sono-cavitation effectively convert PS to radical species demonstrating synergistic effect by increasing the reaction rate and reducing the required energy for activation. It is economically feasible and deployed alternative to the direct thermal activation method. A single and two-stage injection of PS were compared to eliminate self-scavenging effects related to excess of oxidant in system. A GC-MS analysis was used to determine the degradation products of dioxane and to propose the degradation mechanism. The studies revealed that the degradation was significantly enhanced by the addition of PS at molar ratio of oxidant to pollutant 4 with a two-stage injection. Under optimal conditions at US density of 105 W/cm2, dioxane with an initial concentration of 100 mg/L was completely degraded in 120 min. |
| first_indexed | 2024-12-11T17:57:33Z |
| format | Article |
| id | doaj.art-db85793df2da42a29a925191e180c25f |
| institution | Directory Open Access Journal |
| issn | 2212-3717 |
| language | English |
| last_indexed | 2024-12-11T17:57:33Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Resources and Industry |
| spelling | doaj.art-db85793df2da42a29a925191e180c25f2022-12-22T00:56:01ZengElsevierWater Resources and Industry2212-37172022-12-0128100183Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applicationsShirish Sonawane0Kirill Fedorov1Manoj P. Rayaroth2Grzegorz Boczkaj3Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland; National Institute of Technology Warangal, Telangana State, 506004, India; Corresponding author. National Institute of Technology Warangal, Chemical Engineering Department, TS, 506004, India.Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233, Gdansk, PolandGdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, PolandGdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233, Gdansk, Poland; Corresponding author. Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 – 233, Gdansk, G. Narutowicza St. 11/12, Poland.This paper presents a hybrid advanced oxidation process (AOP) based on sonocavitational activation of persulfate (PS) for degradation of 1,4-dioxane during wastewater treatment. Application of sono-cavitation effectively convert PS to radical species demonstrating synergistic effect by increasing the reaction rate and reducing the required energy for activation. It is economically feasible and deployed alternative to the direct thermal activation method. A single and two-stage injection of PS were compared to eliminate self-scavenging effects related to excess of oxidant in system. A GC-MS analysis was used to determine the degradation products of dioxane and to propose the degradation mechanism. The studies revealed that the degradation was significantly enhanced by the addition of PS at molar ratio of oxidant to pollutant 4 with a two-stage injection. Under optimal conditions at US density of 105 W/cm2, dioxane with an initial concentration of 100 mg/L was completely degraded in 120 min.http://www.sciencedirect.com/science/article/pii/S2212371722000166PersulfateUltrasoundCavitationMineralizationWastewater treatmentRadicals |
| spellingShingle | Shirish Sonawane Kirill Fedorov Manoj P. Rayaroth Grzegorz Boczkaj Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications Water Resources and Industry Persulfate Ultrasound Cavitation Mineralization Wastewater treatment Radicals |
| title | Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications |
| title_full | Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications |
| title_fullStr | Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications |
| title_full_unstemmed | Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications |
| title_short | Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications |
| title_sort | degradation of 1 4 dioxane by sono activated persulfates for water and wastewater treatment applications |
| topic | Persulfate Ultrasound Cavitation Mineralization Wastewater treatment Radicals |
| url | http://www.sciencedirect.com/science/article/pii/S2212371722000166 |
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