Application of progressive freezing on forward osmosis draw solute recovery
Progressive freezing is a solvent purification technology with low energy requirements and high concentration efficiency. Although these advantages make it a promising technology, the technique has never been explored for draw solution recovery for forward osmosis (FO). Hence, in this study, the pro...
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/2990 https://doi.org/10.1007/s11356-019-06079-w |
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oai:scholar.dlu.edu.vn:123456789-29902023-09-28T03:19:48Z Application of progressive freezing on forward osmosis draw solute recovery Le, Huy Quang Nguyễn, Thị Xuân Quỳnh Chen, Shiao-Shing Duong, Chinh Cong Cao, Thanh Ngoc-Dan Chang, Hau-Ming Ray, Saikat Sinha Nguyen Cong Nguyen Progressive freezing is a solvent purification technology with low energy requirements and high concentration efficiency. Although these advantages make it a promising technology, the technique has never been explored for draw solution recovery for forward osmosis (FO). Hence, in this study, the progressive freezing process was used to concentrate three common diluted draw solutions: NaCl, MgCl2, and EDTA-2Na with different ice front speeds, stirring rates, and initial draw solution concentrations. Effective partition and intrinsic partition constants were also evaluated. The results reveal that the freezing process can achieve a draw solution recovery rate of 99.73%, 99.06%, and 98.65% with NaCl, MgCl2, and EDTA-2Na, respectively, using an ice front speed of 0.5 cm/h, a stirring rate of 2.62 m/s, and 30% of percentage of ice phase. Higher concentration efficiency for NaCl and MgCl2 was achieved due to the high solubility of NaCl and MgCl2 increased solute diffusion into the liquid phase solutions. The concentration factors for all three draw solutions exceeded 1.9, indicating that the draw solutes could be reused for the FO process. In addition, the two mass transfer coefficients depended on the ice front speed and the stirring rates were also obtained for scaling up the experiment in the future. 2023-09-28T03:19:44Z 2023-09-28T03:19:44Z 2020 Book Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 1614-7499 https://scholar.dlu.edu.vn/handle/123456789/2990 10.1007/s11356-019-06079-w https://doi.org/10.1007/s11356-019-06079-w en |
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Thư viện Trường Đại học Đà Lạt |
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English |
| description |
Progressive freezing is a solvent purification technology with low energy requirements and high concentration efficiency. Although these advantages make it a promising technology, the technique has never been explored for draw solution recovery for forward osmosis (FO). Hence, in this study, the progressive freezing process was used to concentrate three common diluted draw solutions: NaCl, MgCl2, and EDTA-2Na with different ice front speeds, stirring rates, and initial draw solution concentrations. Effective partition and intrinsic partition constants were also evaluated. The results reveal that the freezing process can achieve a draw solution recovery rate of 99.73%, 99.06%, and 98.65% with NaCl, MgCl2, and EDTA-2Na, respectively, using an ice front speed of 0.5 cm/h, a stirring rate of 2.62 m/s, and 30% of percentage of ice phase. Higher concentration efficiency for NaCl and MgCl2 was achieved due to the high solubility of NaCl and MgCl2 increased solute diffusion into the liquid phase solutions. The concentration factors for all three draw solutions exceeded 1.9, indicating that the draw solutes could be reused for the FO process. In addition, the two mass transfer coefficients depended on the ice front speed and the stirring rates were also obtained for scaling up the experiment in the future. |
| format |
Book |
| author |
Le, Huy Quang Nguyễn, Thị Xuân Quỳnh Chen, Shiao-Shing Duong, Chinh Cong Cao, Thanh Ngoc-Dan Chang, Hau-Ming Ray, Saikat Sinha Nguyen Cong Nguyen |
| spellingShingle |
Le, Huy Quang Nguyễn, Thị Xuân Quỳnh Chen, Shiao-Shing Duong, Chinh Cong Cao, Thanh Ngoc-Dan Chang, Hau-Ming Ray, Saikat Sinha Nguyen Cong Nguyen Application of progressive freezing on forward osmosis draw solute recovery |
| author_facet |
Le, Huy Quang Nguyễn, Thị Xuân Quỳnh Chen, Shiao-Shing Duong, Chinh Cong Cao, Thanh Ngoc-Dan Chang, Hau-Ming Ray, Saikat Sinha Nguyen Cong Nguyen |
| author_sort |
Le, Huy Quang |
| title |
Application of progressive freezing on forward osmosis draw solute recovery |
| title_short |
Application of progressive freezing on forward osmosis draw solute recovery |
| title_full |
Application of progressive freezing on forward osmosis draw solute recovery |
| title_fullStr |
Application of progressive freezing on forward osmosis draw solute recovery |
| title_full_unstemmed |
Application of progressive freezing on forward osmosis draw solute recovery |
| title_sort |
application of progressive freezing on forward osmosis draw solute recovery |
| publishDate |
2023 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/2990 https://doi.org/10.1007/s11356-019-06079-w |
| _version_ |
1778792469700280320 |