Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution
Finding suitable draw solutions is still a major problem when developing FO technologies. This study represents the first time a mixed trivalent draw solution containing of EDTA–2Na and Na3PO4 was systemically studied for FO performance. The objective here was to achieve simultaneously low reverse s...
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2023
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/2991 https://www.sciencedirect.com/science/article/pii/S0376738820306086 |
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oai:scholar.dlu.edu.vn:123456789-29912023-09-28T03:21:21Z Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution Nguyen Cong Nguyen Duong, Hung Cong Nguyen Thi Hau Chen, Shiao-Shing Le, Huy Quang Ngo, Huu Hao Guo, Wenshan Duong, Chinh Cong Lê, Ngọc Chung Bui, Xuan Thanh Forward osmosis; Membrane distillation; Draw solution regeneration; Reverse salt flux; Low-carbon desalination Finding suitable draw solutions is still a major problem when developing FO technologies. This study represents the first time a mixed trivalent draw solution containing of EDTA–2Na and Na3PO4 was systemically studied for FO performance. The objective here was to achieve simultaneously low reverse salt flux and high water flux. The FO results showed that the mixed trivalent draw solution-based 0.3 M EDTA–2Na and 0.55 M Na3PO4 underwent higher water flux (Jw = 9.17 L/m2⋅h) than that of pure 0.85 M EDTA-2Na (Jw = 7.02 L/m2⋅h) due to its lower viscosity. Additionally, the specific reverse salt flux caused by mixing 0.3 M EDTA–2Na with 0.55 M Na3PO4 draw solution was only 0.053 g/L using DI water as the feed solution. Donnan equilibrium force and formed complexation of [EDTANa]3-, [HPO4Na]- with the FO membrane are believed to constitute the main mechanism for minimizing salt leakage from the mixed draw solution. Moreover, the FO desalination process utilizing the mixed trivalent draw solution achieved water fluxes of 6.12 L/m2⋅h with brackish water (TDS = 5000 mg/L) and 3.10 L/m2⋅h with seawater (TDS = 35,000 mg/L) as the feed solution. Lastly, diluted mixed trivalent draw solution following the FO process was effectively separated using the MD process with salt rejection >99.99% at a mild feed temperature of 55 °C. 2023-09-28T03:21:16Z 2023-09-28T03:21:16Z 2020 Book Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 0376-7388 https://scholar.dlu.edu.vn/handle/123456789/2991 10.1016/j.memsci.2020.118029 https://www.sciencedirect.com/science/article/pii/S0376738820306086 en |
| institution |
Thư viện Trường Đại học Đà Lạt |
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Thư viện số |
| language |
English |
| topic |
Forward osmosis; Membrane distillation; Draw solution regeneration; Reverse salt flux; Low-carbon desalination |
| spellingShingle |
Forward osmosis; Membrane distillation; Draw solution regeneration; Reverse salt flux; Low-carbon desalination Nguyen Cong Nguyen Duong, Hung Cong Nguyen Thi Hau Chen, Shiao-Shing Le, Huy Quang Ngo, Huu Hao Guo, Wenshan Duong, Chinh Cong Lê, Ngọc Chung Bui, Xuan Thanh Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| description |
Finding suitable draw solutions is still a major problem when developing FO technologies. This study represents the first time a mixed trivalent draw solution containing of EDTA–2Na and Na3PO4 was systemically studied for FO performance. The objective here was to achieve simultaneously low reverse salt flux and high water flux. The FO results showed that the mixed trivalent draw solution-based 0.3 M EDTA–2Na and 0.55 M Na3PO4 underwent higher water flux (Jw = 9.17 L/m2⋅h) than that of pure 0.85 M EDTA-2Na (Jw = 7.02 L/m2⋅h) due to its lower viscosity. Additionally, the specific reverse salt flux caused by mixing 0.3 M EDTA–2Na with 0.55 M Na3PO4 draw solution was only 0.053 g/L using DI water as the feed solution. Donnan equilibrium force and formed complexation of [EDTANa]3-, [HPO4Na]- with the FO membrane are believed to constitute the main mechanism for minimizing salt leakage from the mixed draw solution. Moreover, the FO desalination process utilizing the mixed trivalent draw solution achieved water fluxes of 6.12 L/m2⋅h with brackish water (TDS = 5000 mg/L) and 3.10 L/m2⋅h with seawater (TDS = 35,000 mg/L) as the feed solution. Lastly, diluted mixed trivalent draw solution following the FO process was effectively separated using the MD process with salt rejection >99.99% at a mild feed temperature of 55 °C. |
| format |
Book |
| author |
Nguyen Cong Nguyen Duong, Hung Cong Nguyen Thi Hau Chen, Shiao-Shing Le, Huy Quang Ngo, Huu Hao Guo, Wenshan Duong, Chinh Cong Lê, Ngọc Chung Bui, Xuan Thanh |
| author_facet |
Nguyen Cong Nguyen Duong, Hung Cong Nguyen Thi Hau Chen, Shiao-Shing Le, Huy Quang Ngo, Huu Hao Guo, Wenshan Duong, Chinh Cong Lê, Ngọc Chung Bui, Xuan Thanh |
| author_sort |
Nguyen Cong Nguyen |
| title |
Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| title_short |
Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| title_full |
Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| title_fullStr |
Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| title_full_unstemmed |
Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| title_sort |
forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution |
| publishDate |
2023 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/2991 https://www.sciencedirect.com/science/article/pii/S0376738820306086 |
| _version_ |
1778792470037921792 |