Exploring an innovative surfactant and phosphate-based draw solution for forward osmosis desalination
學年 104
學期 1
出版（發表）日期 2015-09-01
作品名稱 Exploring an innovative surfactant and phosphate-based draw solution for forward osmosis desalination
作品名稱（其他語言）
著者 Hau Thi Nguyen; Chen, Shiao-Shing; Nguyen Cong Nguyen; Huu Hao Ngo; Wenshan Guo; Li, Chi-Wang
單位 淡江大學水資源及環境工程學系
出版者 Elsevier BV
著錄名稱、卷期、頁數 Journal of Membrane Science 489, p.212–219
摘要 The reverse salt flux phenomenon of forward osmosis affects the quality of the feed water, reduces water flux, and increases the cost for replenishing lost draw solute. In this study, a novel draw solution comprising a mixture of Triton X100 and Na3PO4 for minimizing the reverse salt flux during forward osmosis (FO) was explored. The results indicated that the reverse salt flux caused by coupling 0.5 mM Triton X100 to 0.55 M Na3PO4 draw solution was only 0.13 g/m2 h, and the specific reverse salt flux was 0.03 g/L using DI water as the feed solution, which are the lowest recorded values among all forward osmosis studies. Hydrophobic attractive interactions between tail groups of Triton X100 with the FO membrane are believed to be the main mechanism for minimizing salt leakage. Results from desalination experiments demonstrated that using 0.55 M Na3PO4 coupled with 0.5 mM Triton X100 as the draw solution and brackish water and seawater as the feed solution with total dissolved solids of 4090 and 36,800 ppm achieved water fluxes of 4.89 L/m2 h and 1.15 L/m2 h, respectively. Furthermore, using a two-stage ultrafiltration–nanofiltration system for the draw solution recovery enabled 98% recovery of solutes.
關鍵字 Forward osmosis;Seawater desalination;Hydrophobic interaction;Surfactant
語言 en
ISSN 0376-7388;1873-3123
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Chen, Shiao-Shing
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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