膜科学与技术

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Progress on a forward osmosis coupled vacuum membrane distillation process for the treatment of shale gas drilling wastewater

Authors： LI Chunxia, Chen Gang, Zhao Baolong, Wang Zhouwei, LI Xuemei*, HE Tao*

Units： Shanghai Advanced Research Institute，Chinese Academy of Sciences, Shanghai 201210 , China

KeyWords： forward osmosis, salt rejection, draw solution, membrane material, shale gas drilling wastewater

ClassificationCode：TQ028; X703.1

year,volume(issue):pagination： 2014,34(5):96-101

Abstract：

The successful drilling of shale gas has granted the United Stated the No.1 natural gas production country in 2009. Shale gas drilling on the other hand, has also drawn wider concerns on its ecological and environmental impacts, among which shale gas drilling waste water is a prominent concern because of its high salinity, complicated composition and potential hazards to the environment. Our research group has been focused on the treatment of shale gas wastewater by forward osmosi and research progress is reported herein. The membrane preparation, the selection of draw solution and its recovery were discussed in detail. Home-made thin-film composite (TFC) membranes showed higher water permeability and salt rejection than the commercial HTI membrane when used in the treatment of shale gas wastewater. Shale gas drilling wastewater was pretreated by coagulation followed by ultra-filtration and then used as feed for the FO-VMD process. The product water quality of the FO-VMD process is comparable to bottled water, which holds promise for the large scale application of such process for treatment of wastewaters of complicated compositions.

Funds：

国家重大基础研究973项目 (No. 2009CB623402, 2012CB720903 ),自然科学基金项目(21176119),上海市博士后科研资助计划（项目编号13R21421600), 壳牌前沿研究基金

AuthorIntro：

：李春霞（1982-），女，上海人，博士后，从事膜材料制备及正渗透技术应用研究.

Reference：

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