Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration

Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration

The exploration of coupling surfactants with highly charged phosphate as novel draw solutions for forward osmosis (FO) to minimize salt leakage and enhance draw solute recovery at low energy is presented for the first time. In this work, anionic (sodium dodecyl sulfate (SDS)), cationic (cetyltrimeth...

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Những tác giả chính: Nguyen Thi Hau, Nguyen Cong Nguyen, Chen, Shiao-Shing, Wu, Shu-Ying
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2023
Truy cập trực tuyến:https://scholar.dlu.edu.vn/handle/123456789/3022
https://doi.org/10.2166/ws.2015.060
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spelling oai:scholar.dlu.edu.vn:123456789-30222023-09-28T06:31:19Z Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration Nguyen Thi Hau Nguyen Cong Nguyen Chen, Shiao-Shing Wu, Shu-Ying The exploration of coupling surfactants with highly charged phosphate as novel draw solutions for forward osmosis (FO) to minimize salt leakage and enhance draw solute recovery at low energy is presented for the first time. In this work, anionic (sodium dodecyl sulfate (SDS)), cationic (cetyltrimethylammonium bromide) and non-ionic (polyethylene glycol tert-octylphenyl ether, TX-100) surfactants were used to couple with Na3PO4 for enlarging draw solution particle size that could improve the solute retention. Three kinds of nanofiltration (NF) membranes (HL, DL and TS80 with molecular weight cutoff (MWCO) of 100–500) and three kinds of ultrafiltration (UF) membranes (GE, GH and GK with MWCO of 1,000–3,000) were used to evaluate the draw solution recovery. The formed second layer, micelles, MWCO and charged valent were determined to be the dominant mechanisms for diluted draw solution recovery. The results show that coupling non-ionic surfactant with 0.02 M Na3PO4 can be regenerated with recoveries as high as 60% and 96% when using UF-GE and NF-TS80, respectively. The overall performance demonstrates that coupling surfactant with highly charged phosphate is promising as draw solutes for application to FO. 2023-09-28T06:31:16Z 2023-09-28T06:31:16Z 2015-10-01 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 1606-9749 https://scholar.dlu.edu.vn/handle/123456789/3022 10.2166/ws.2015.060 https://doi.org/10.2166/ws.2015.060 en
institution Thư viện Trường Đại học Đà Lạt
collection Thư viện số
language English
description The exploration of coupling surfactants with highly charged phosphate as novel draw solutions for forward osmosis (FO) to minimize salt leakage and enhance draw solute recovery at low energy is presented for the first time. In this work, anionic (sodium dodecyl sulfate (SDS)), cationic (cetyltrimethylammonium bromide) and non-ionic (polyethylene glycol tert-octylphenyl ether, TX-100) surfactants were used to couple with Na3PO4 for enlarging draw solution particle size that could improve the solute retention. Three kinds of nanofiltration (NF) membranes (HL, DL and TS80 with molecular weight cutoff (MWCO) of 100–500) and three kinds of ultrafiltration (UF) membranes (GE, GH and GK with MWCO of 1,000–3,000) were used to evaluate the draw solution recovery. The formed second layer, micelles, MWCO and charged valent were determined to be the dominant mechanisms for diluted draw solution recovery. The results show that coupling non-ionic surfactant with 0.02 M Na3PO4 can be regenerated with recoveries as high as 60% and 96% when using UF-GE and NF-TS80, respectively. The overall performance demonstrates that coupling surfactant with highly charged phosphate is promising as draw solutes for application to FO.
format Journal article
author Nguyen Thi Hau
Nguyen Cong Nguyen
Chen, Shiao-Shing
Wu, Shu-Ying
spellingShingle Nguyen Thi Hau
Nguyen Cong Nguyen
Chen, Shiao-Shing
Wu, Shu-Ying
Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
author_facet Nguyen Thi Hau
Nguyen Cong Nguyen
Chen, Shiao-Shing
Wu, Shu-Ying
author_sort Nguyen Thi Hau
title Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
title_short Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
title_full Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
title_fullStr Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
title_full_unstemmed Concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
title_sort concentrate of surfactant-based draw solutions in forward osmosis by ultrafiltration and nanofiltration
publishDate 2023
url https://scholar.dlu.edu.vn/handle/123456789/3022
https://doi.org/10.2166/ws.2015.060
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