Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules
NOx (NO and NO2) are air toxins that endanger life and represent a hazard to the environment, such as photochemical smog, global warming, acid rain, ozone depletion, and the occurrence of respiratory infections. Some technological strategies to diminish NOx emissions to meet regulations depend on tw...
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Wiley
2021-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/8277082 |
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| author | Irfan Purnawan Sutrasno Kartohardjono Levana Wibowo Annisa Faiza Ramadhani Woei Jye Lau Arifina Febriasari |
| author_facet | Irfan Purnawan Sutrasno Kartohardjono Levana Wibowo Annisa Faiza Ramadhani Woei Jye Lau Arifina Febriasari |
| author_sort | Irfan Purnawan |
| collection | DOAJ |
| description | NOx (NO and NO2) are air toxins that endanger life and represent a hazard to the environment, such as photochemical smog, global warming, acid rain, ozone depletion, and the occurrence of respiratory infections. Some technological strategies to diminish NOx emissions to meet regulations depend on two techniques: the dry process and the wet process. This study applies polyvinylidene fluoride (PVDF) hollow fiber membrane modules as a medium to remove NOx from solutions containing several absorbents such as hydrogen peroxide and nitric acid (H2O2-HNO3) solutions, sodium chlorite and sodium hydroxide (NaClO2-NaOH) solutions, and sodium chlorate and sodium hydroxide (NaClO3-NaOH) solutions. The experimental results showed that the oxidant’s strength influences NOx removal efficiency, where the absorbent solutions containing hydrogen peroxide had the highest removal efficiency as hydrogen peroxide is the most potent oxidant, followed by sodium chlorite and sodium chlorate. The three pairs of absorbents also gave a high NOx removal efficiency (above 90%), which means that all the absorbents used in the study are very potential to be used to diminish NOx via the wet process. NOx removal efficiency at the same feed gas flow rate increased as the number of fiber and absorbent concentrations is increased. However, NOx removal efficiency is reduced as the feed gas flow rate is increased at the same membrane module and absorbent concentration. |
| format | Article |
| id | doaj-art-e582eb35814d40f98c4a3d1e8aad1c31 |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-e582eb35814d40f98c4a3d1e8aad1c312025-02-03T01:25:48ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782021-01-01202110.1155/2021/82770828277082Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane ModulesIrfan Purnawan0Sutrasno Kartohardjono1Levana Wibowo2Annisa Faiza Ramadhani3Woei Jye Lau4Arifina Febriasari5Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, IndonesiaDepartment of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, IndonesiaDepartment of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, IndonesiaDepartment of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, IndonesiaAdvanced Membrane Technology Research Centre, Universiti Teknologi Malaysia, 81310 Skudai, Johor, MalaysiaDepartment of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI, Depok 16424, IndonesiaNOx (NO and NO2) are air toxins that endanger life and represent a hazard to the environment, such as photochemical smog, global warming, acid rain, ozone depletion, and the occurrence of respiratory infections. Some technological strategies to diminish NOx emissions to meet regulations depend on two techniques: the dry process and the wet process. This study applies polyvinylidene fluoride (PVDF) hollow fiber membrane modules as a medium to remove NOx from solutions containing several absorbents such as hydrogen peroxide and nitric acid (H2O2-HNO3) solutions, sodium chlorite and sodium hydroxide (NaClO2-NaOH) solutions, and sodium chlorate and sodium hydroxide (NaClO3-NaOH) solutions. The experimental results showed that the oxidant’s strength influences NOx removal efficiency, where the absorbent solutions containing hydrogen peroxide had the highest removal efficiency as hydrogen peroxide is the most potent oxidant, followed by sodium chlorite and sodium chlorate. The three pairs of absorbents also gave a high NOx removal efficiency (above 90%), which means that all the absorbents used in the study are very potential to be used to diminish NOx via the wet process. NOx removal efficiency at the same feed gas flow rate increased as the number of fiber and absorbent concentrations is increased. However, NOx removal efficiency is reduced as the feed gas flow rate is increased at the same membrane module and absorbent concentration.http://dx.doi.org/10.1155/2021/8277082 |
| spellingShingle | Irfan Purnawan Sutrasno Kartohardjono Levana Wibowo Annisa Faiza Ramadhani Woei Jye Lau Arifina Febriasari Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules International Journal of Chemical Engineering |
| title | Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules |
| title_full | Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules |
| title_fullStr | Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules |
| title_full_unstemmed | Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules |
| title_short | Effect of Absorbents on NOx Removal through Polyvinylidene Fluoride (PVDF) Hollow Fiber Membrane Modules |
| title_sort | effect of absorbents on nox removal through polyvinylidene fluoride pvdf hollow fiber membrane modules |
| url | http://dx.doi.org/10.1155/2021/8277082 |
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