Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization
To address the persistent challenge of textile wastewater treatment, a non-thermal dielectric barrier discharge (DBD) plasma jet process was developed and optimized for the effective removal and mineralization of Rhodamine B dye from synthetic wastewater. Using the Box–Behnken design and response su...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025008679 |
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| author | Md. Mokter Hossain Sehrish Asghar Dinithi Mohotti Towfeeq Robi Sarah Wu |
| author_facet | Md. Mokter Hossain Sehrish Asghar Dinithi Mohotti Towfeeq Robi Sarah Wu |
| author_sort | Md. Mokter Hossain |
| collection | DOAJ |
| description | To address the persistent challenge of textile wastewater treatment, a non-thermal dielectric barrier discharge (DBD) plasma jet process was developed and optimized for the effective removal and mineralization of Rhodamine B dye from synthetic wastewater. Using the Box–Behnken design and response surface methodology, the influence of three key process parameters- applied power (30–60 W), power frequency (10–20 kHz), and argon gas flow rate (0.5–1.5 L/min)- and their interactions on the decomposition of RhB were systematically evaluated and optimized for an initial RhB concentration of 100 mg/L. Under optimal conditions of 60 W applied power, 20 kHz frequency, and 1.5 L/min gas flow rate, the DBD plasma jet achieved a high RhB removal efficiency of 96% within 20 min, with an energy efficiency of 0.193 g/kWh and a G50 energy yield of 0.266 g/kWh. The process followed pseudo-first-order kinetics, with mineralization of the dye evidenced by a 94% reduction in chemical oxygen demand, 92% reduction in total organic carbon, and the formation of nitrate and ammonium ions. The degradation pathway of RhB, involving de-ethylation, chromophore cleavage, and subsequent mineralization, was proposed based on optical emission spectroscopy and liquid chromatography-mass spectrometry analyses. This study demonstrates the potential of the DBD plasma jet as an efficient and sustainable method for the treatment of dye-laden wastewater. |
| format | Article |
| id | doaj-art-1dc3529c2c674617867a2f2a630498be |
| institution | OA Journals |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Results in Engineering |
| spelling | doaj-art-1dc3529c2c674617867a2f2a630498be2025-08-20T02:08:27ZengElsevierResults in Engineering2590-12302025-06-012610479010.1016/j.rineng.2025.104790Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimizationMd. Mokter Hossain0Sehrish Asghar1Dinithi Mohotti2Towfeeq Robi3Sarah Wu4Department of Chemical and Biological Engineering, University of Idaho, Moscow, ID 83844, United StatesEnvironmental Science Program, University of Idaho, Moscow, ID 83844, United StatesEnvironmental Science Program, University of Idaho, Moscow, ID 83844, United StatesDepartment of Chemical and Biological Engineering, University of Idaho, Moscow, ID 83844, United StatesDepartment of Chemical and Biological Engineering, University of Idaho, Moscow, ID 83844, United States; Corresponding author.To address the persistent challenge of textile wastewater treatment, a non-thermal dielectric barrier discharge (DBD) plasma jet process was developed and optimized for the effective removal and mineralization of Rhodamine B dye from synthetic wastewater. Using the Box–Behnken design and response surface methodology, the influence of three key process parameters- applied power (30–60 W), power frequency (10–20 kHz), and argon gas flow rate (0.5–1.5 L/min)- and their interactions on the decomposition of RhB were systematically evaluated and optimized for an initial RhB concentration of 100 mg/L. Under optimal conditions of 60 W applied power, 20 kHz frequency, and 1.5 L/min gas flow rate, the DBD plasma jet achieved a high RhB removal efficiency of 96% within 20 min, with an energy efficiency of 0.193 g/kWh and a G50 energy yield of 0.266 g/kWh. The process followed pseudo-first-order kinetics, with mineralization of the dye evidenced by a 94% reduction in chemical oxygen demand, 92% reduction in total organic carbon, and the formation of nitrate and ammonium ions. The degradation pathway of RhB, involving de-ethylation, chromophore cleavage, and subsequent mineralization, was proposed based on optical emission spectroscopy and liquid chromatography-mass spectrometry analyses. This study demonstrates the potential of the DBD plasma jet as an efficient and sustainable method for the treatment of dye-laden wastewater.http://www.sciencedirect.com/science/article/pii/S2590123025008679Textile wastewaterNonthermal plasma jetDielectric barrier dischargeRhodamine BRemoval efficiencyEnergy efficiency |
| spellingShingle | Md. Mokter Hossain Sehrish Asghar Dinithi Mohotti Towfeeq Robi Sarah Wu Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization Results in Engineering Textile wastewater Nonthermal plasma jet Dielectric barrier discharge Rhodamine B Removal efficiency Energy efficiency |
| title | Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization |
| title_full | Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization |
| title_fullStr | Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization |
| title_full_unstemmed | Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization |
| title_short | Mineralization of Rhodamine B dye in water using dielectric barrier plasma jet with process optimization |
| title_sort | mineralization of rhodamine b dye in water using dielectric barrier plasma jet with process optimization |
| topic | Textile wastewater Nonthermal plasma jet Dielectric barrier discharge Rhodamine B Removal efficiency Energy efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025008679 |
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