Application of an innovative draw solute in forward osmosis (FO) processes
More attention is being paid to forward osmosis (FO) as a breakthrough technology to tackle environmental pollution due to advantages such as high contaminant removal and low energy consumption. Nevertheless, FO applications remain limited by the lack of ideal draw solutes that simultaneously achie...
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| Format: | Article |
| Language: | English |
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Vietnam Ministry of Science and Technology
2021-03-01
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| Series: | Vietnam Journal of Science, Technology and Engineering |
| Subjects: | |
| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/5 |
| _version_ | 1797937735845019648 |
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| author | Nguyen Cong Nguyen Hau Thi Nguyen Shiao-Shing Chen Xuan Thanh Bui |
| author_facet | Nguyen Cong Nguyen Hau Thi Nguyen Shiao-Shing Chen Xuan Thanh Bui |
| author_sort | Nguyen Cong Nguyen |
| collection | DOAJ |
| description |
More attention is being paid to forward osmosis (FO) as a breakthrough technology to tackle environmental pollution due to advantages such as high contaminant removal and low energy consumption. Nevertheless, FO applications remain limited by the lack of ideal draw solutes that simultaneously achieve high permeate flux and low salt leakage flux. Therefore, this paper aims to increase water flux while maintaining low reverse salt diffusion by using a low concentration of a highly charged organic EDTA compound coupled with inorganic NaCl salt as a novel draw solute. Results of the FO performance revealed that a draw solute of 0.3 M EDTA-2Na mixed with 0.6 M NaCl yielded a higher water flux (Jw=8.82 l/m2 h) when compared to 0.9 M NaCl only (Jw=7.61 l/m2 h). Moreover, the FOmembrane distillation system produced good quality drinking water with a total dissolved solid (TDS) of <5 mg/l from the permeate stream originating from influent brackish water with a TDS of 6000 mg/l. The analysis results from scanning electron microscopy and energy dispersive X-ray spectroscopy (SEMEDX) images observed a cake layer of NaCl on the FO membrane surface.
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| first_indexed | 2024-04-10T18:48:57Z |
| format | Article |
| id | doaj.art-20469dd6744742caa082e31316d2d5b1 |
| institution | Directory Open Access Journal |
| issn | 2525-2461 2615-9937 |
| language | English |
| last_indexed | 2024-04-10T18:48:57Z |
| publishDate | 2021-03-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj.art-20469dd6744742caa082e31316d2d5b12023-02-01T08:20:11ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372021-03-0163110.31276/VJSTE.63(1).30-35Application of an innovative draw solute in forward osmosis (FO) processesNguyen Cong Nguyen0Hau Thi Nguyen1 Shiao-Shing Chen2Xuan Thanh Bui3Faculty of Environment and Natural Resources, Dalat UniversityFaculty of Environment and Natural Resources, Dalat UniversityInstitute of Environmental Engineering and Management, National Taipei University of TechnologyFaculty of Environment and Natural Resources, University of Technology, Vietnam National University, Ho Chi Minh city More attention is being paid to forward osmosis (FO) as a breakthrough technology to tackle environmental pollution due to advantages such as high contaminant removal and low energy consumption. Nevertheless, FO applications remain limited by the lack of ideal draw solutes that simultaneously achieve high permeate flux and low salt leakage flux. Therefore, this paper aims to increase water flux while maintaining low reverse salt diffusion by using a low concentration of a highly charged organic EDTA compound coupled with inorganic NaCl salt as a novel draw solute. Results of the FO performance revealed that a draw solute of 0.3 M EDTA-2Na mixed with 0.6 M NaCl yielded a higher water flux (Jw=8.82 l/m2 h) when compared to 0.9 M NaCl only (Jw=7.61 l/m2 h). Moreover, the FOmembrane distillation system produced good quality drinking water with a total dissolved solid (TDS) of <5 mg/l from the permeate stream originating from influent brackish water with a TDS of 6000 mg/l. The analysis results from scanning electron microscopy and energy dispersive X-ray spectroscopy (SEMEDX) images observed a cake layer of NaCl on the FO membrane surface. https://vietnamscience.vjst.vn/index.php/vjste/article/view/5brackish waterdistillationforward osmosismembrane draw solutereverse salt flux |
| spellingShingle | Nguyen Cong Nguyen Hau Thi Nguyen Shiao-Shing Chen Xuan Thanh Bui Application of an innovative draw solute in forward osmosis (FO) processes Vietnam Journal of Science, Technology and Engineering brackish water distillation forward osmosis membrane draw solute reverse salt flux |
| title | Application of an innovative draw solute in forward osmosis (FO) processes |
| title_full | Application of an innovative draw solute in forward osmosis (FO) processes |
| title_fullStr | Application of an innovative draw solute in forward osmosis (FO) processes |
| title_full_unstemmed | Application of an innovative draw solute in forward osmosis (FO) processes |
| title_short | Application of an innovative draw solute in forward osmosis (FO) processes |
| title_sort | application of an innovative draw solute in forward osmosis fo processes |
| topic | brackish water distillation forward osmosis membrane draw solute reverse salt flux |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/5 |
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