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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| Format: | Article |
| Language: | English |
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Hindawi Limited
2021
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| Online Access: | http://eprints.utm.my/94858/1/LauWoeiJye2021_EffectofAbsorbentsonNOxRemoval.pdf |
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| author | Purnawan, Irfan Kartohardjono, Sutrasno Wibowo, Levana Ramadhani, Annisa Faiza Lau, Woei Jye Febriasari, Arifina |
| author_facet | Purnawan, Irfan Kartohardjono, Sutrasno Wibowo, Levana Ramadhani, Annisa Faiza Lau, Woei Jye Febriasari, Arifina |
| author_sort | Purnawan, Irfan |
| collection | ePrints |
| 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. |
| first_indexed | 2024-03-05T21:04:12Z |
| format | Article |
| id | utm.eprints-94858 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T21:04:12Z |
| publishDate | 2021 |
| publisher | Hindawi Limited |
| record_format | dspace |
| spelling | utm.eprints-948582022-04-29T22:28:11Z http://eprints.utm.my/94858/ Effect of absorbents on NOx removal through polyvinylidene fluoride (PVDF) hollow fiber membrane modules Purnawan, Irfan Kartohardjono, Sutrasno Wibowo, Levana Ramadhani, Annisa Faiza Lau, Woei Jye Febriasari, Arifina QD Chemistry TP Chemical technology 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. Hindawi Limited 2021-08 Article PeerReviewed application/pdf en http://eprints.utm.my/94858/1/LauWoeiJye2021_EffectofAbsorbentsonNOxRemoval.pdf Purnawan, Irfan and Kartohardjono, Sutrasno and Wibowo, Levana and Ramadhani, Annisa Faiza and Lau, Woei Jye and Febriasari, Arifina (2021) Effect of absorbents on NOx removal through polyvinylidene fluoride (PVDF) hollow fiber membrane modules. International Journal of Chemical Engineering, 2021 . pp. 1-8. ISSN 1687-806X http://dx.doi.org/10.1155/2021/8277082 DOI:10.1155/2021/8277082 |
| spellingShingle | QD Chemistry TP Chemical technology Purnawan, Irfan Kartohardjono, Sutrasno Wibowo, Levana Ramadhani, Annisa Faiza Lau, Woei Jye Febriasari, Arifina Effect of absorbents on NOx removal through polyvinylidene fluoride (PVDF) hollow fiber membrane modules |
| 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 |
| topic | QD Chemistry TP Chemical technology |
| url | http://eprints.utm.my/94858/1/LauWoeiJye2021_EffectofAbsorbentsonNOxRemoval.pdf |
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