Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets.
Reverse osmosis (RO) process is a promising technology for treating radionuclide-containing wastewater owing to its reliability and effectiveness in ion separation. The long-term stability of RO membranes in terms of water flux and radionuclide rejection is a crucial factor for their practical appli...
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my.utm.1066142024-07-09T08:03:26Z http://eprints.utm.my/106614/ Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. Ahmad, Nor Akalili Tam, Lih Jang Goh, Pei Sean Azman, Nurfirzanah Ismail, Ahmad Fauzi Jamaluddin, Khairulnadzmi Arthanareeswaran, Gangasalam TP Chemical technology Reverse osmosis (RO) process is a promising technology for treating radionuclide-containing wastewater owing to its reliability and effectiveness in ion separation. The long-term stability of RO membranes in terms of water flux and radionuclide rejection is a crucial factor for their practical application. In this study, thin film composite (TFC) RO membrane with high long-term stability and antifouling properties for radionuclide-containing wastewater treatment was developed by spray coating the surface of polyamide (PA) layer with oppositely charged titania nanosheets (TNS). Caesium ion (Cs+) as model radionuclide was used to assess the RO performance of the manufactured membranes, including permeability and radionuclide rejection The highest permeability of 1.53 L·m−2·h−1·bar−1, which was 45.8 % higher than that of neat TFC membrane, was achieved by thin film nanocomposite (TFN) membrane sprayed-coated with 15 ppm TNS bilayer. Compared to TFC membrane which exhibited CsCl rejection of 99.32 %, the rejection of all TNS spray-coated TFN membranes was improved to almost complete rejection. During the long-term testing, the optimum TFN/TNS(15) membrane demonstrated well-retained water flux and ion rejection. The roles of the TNS bilayer in improving the long-term stability and antifouling properties are discussed. The findings of this study highlight the potential of a tailored TFC RO membrane in treating radioanuclide-containing wastewater. Elsevier Ltd. 2023-10 Article PeerReviewed Ahmad, Nor Akalili and Tam, Lih Jang and Goh, Pei Sean and Azman, Nurfirzanah and Ismail, Ahmad Fauzi and Jamaluddin, Khairulnadzmi and Arthanareeswaran, Gangasalam (2023) Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. Journal of Environmental Chemical Engineering, 11 (5). NA-NA. ISSN 2213-3437 http://dx.doi.org/10.1016/j.jece.2023.110540 DOI:10.1016/j.jece.2023.110540 |
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TP Chemical technology Ahmad, Nor Akalili Tam, Lih Jang Goh, Pei Sean Azman, Nurfirzanah Ismail, Ahmad Fauzi Jamaluddin, Khairulnadzmi Arthanareeswaran, Gangasalam Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
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Reverse osmosis (RO) process is a promising technology for treating radionuclide-containing wastewater owing to its reliability and effectiveness in ion separation. The long-term stability of RO membranes in terms of water flux and radionuclide rejection is a crucial factor for their practical application. In this study, thin film composite (TFC) RO membrane with high long-term stability and antifouling properties for radionuclide-containing wastewater treatment was developed by spray coating the surface of polyamide (PA) layer with oppositely charged titania nanosheets (TNS). Caesium ion (Cs+) as model radionuclide was used to assess the RO performance of the manufactured membranes, including permeability and radionuclide rejection The highest permeability of 1.53 L·m−2·h−1·bar−1, which was 45.8 % higher than that of neat TFC membrane, was achieved by thin film nanocomposite (TFN) membrane sprayed-coated with 15 ppm TNS bilayer. Compared to TFC membrane which exhibited CsCl rejection of 99.32 %, the rejection of all TNS spray-coated TFN membranes was improved to almost complete rejection. During the long-term testing, the optimum TFN/TNS(15) membrane demonstrated well-retained water flux and ion rejection. The roles of the TNS bilayer in improving the long-term stability and antifouling properties are discussed. The findings of this study highlight the potential of a tailored TFC RO membrane in treating radioanuclide-containing wastewater. |
format |
Article |
author |
Ahmad, Nor Akalili Tam, Lih Jang Goh, Pei Sean Azman, Nurfirzanah Ismail, Ahmad Fauzi Jamaluddin, Khairulnadzmi Arthanareeswaran, Gangasalam |
author_facet |
Ahmad, Nor Akalili Tam, Lih Jang Goh, Pei Sean Azman, Nurfirzanah Ismail, Ahmad Fauzi Jamaluddin, Khairulnadzmi Arthanareeswaran, Gangasalam |
author_sort |
Ahmad, Nor Akalili |
title |
Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
title_short |
Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
title_full |
Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
title_fullStr |
Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
title_full_unstemmed |
Treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
title_sort |
treatment of radionuclide-containing wastewater using thin film composite reverse osmosis membrane with spray coating-assembled titania nanosheets. |
publisher |
Elsevier Ltd. |
publishDate |
2023 |
url |
http://eprints.utm.my/106614/ http://dx.doi.org/10.1016/j.jece.2023.110540 |
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1805880838192103424 |
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13.18916 |