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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Những tác giả chính:	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
Định dạng:	Journal article
Ngôn ngữ:	English
Được phát hành:	2023
Những chủ đề:	Forward osmosis; Membrane distillation; Draw solution regeneration; Reverse salt flux; Low-carbon desalination
Truy cập trực tuyến:	https://scholar.dlu.edu.vn/handle/123456789/3032 https://www.sciencedirect.com/science/article/pii/S0376738820306086
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spelling	oai:scholar.dlu.edu.vn:123456789-30322023-09-28T13:45:28Z 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. 2023-09-28T13:45:23Z 2023-09-28T13:45:23Z 2020-05-15 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 0376-7388 https://scholar.dlu.edu.vn/handle/123456789/3032 10.1016/j.memsci.2020.118029 https://www.sciencedirect.com/science/article/pii/S0376738820306086 en
institution	Thư viện Trường Đại học Đà Lạt
collection	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	Journal article
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/123456789/3032 https://www.sciencedirect.com/science/article/pii/S0376738820306086
_version_	1778792483202793472

Forward osmosis–membrane distillation hybrid system for desalination using mixed trivalent draw solution

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