High-Performance Forward Osmosis Membranes Used for Treating High-Salinity Oil-Bearing Wastewater

• DOI: 10.1021/acs.iecr.7b02917
• Publication Date: 2017-10-09T14:38:22Z
• Authors: Shanshan Xu; Pengfei Lin; Xiaochan An; Yunxia Hu; Zhenbo Wang; Like Zhong; Qingshan Niu
• Keywords: Thin-film composite membrane; Osmosis

Forward osmosis (FO), which is an emerging osmotic driving membrane separation process, can be directly used in high-salinity oil-bearing (HSOB) wastewater treatment. In this study, the thin film composite (TFC) polyamide FO membranes were fabricated for HSOB The impacts of draw solution (DS) concentration, cross-flow rate, stirring and orientation on performances researched. results indicated that operation mode was better to achieve a stable water flux TFC as 29 L/(m2 h) under rate 15 cm/s 3 M NaCl DS, 61% higher than unoptimized operating conditions (18 h)). rejection salt oil 99% 96%. addition, effect different concentrations studied, showed performed well treat when concentration <700 mg/L.