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http://dx.doi.org/10.3795/KSME-B.2015.39.3.279

Comparison of Performances of Forward Osmosis and Membrane Distillation Processes for Shale Gas Plant Water Treatment  

Koo, Jaewuk (Environmental & Plant Engineering Institute Korea Institute of Civil Engineering and Building Technology)
Lee, Sangho (Dept. of Civil and Environmental Engineering, Kookmin Univ.)
Shin, Yonghyun (Dept. of Civil and Environmental Engineering, Kookmin Univ.)
Yun, Taekgeun (Dept. of Civil and Environmental Engineering, Kookmin Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.3, 2015 , pp. 279-284 More about this Journal
Abstract
As non-conventional oil resources such as shale gas have been widely developed, proper treatment of flowback and produced water is becoming important. However, application of conventional water treatment techniques is limited due to high concentration of pollutants such as oil and grease, organics, harmful chemicals, and inorganic ions. In this study, we examined the feasibility of using forward osmosis (FO) and air gap membrane distillation (AGMD) as novel treatment options for shale gas wastewater. Laboratory-scale FO and MD devices were fabricated and used for the experiments. Results showed that FO could be used to treat the synthetic wastewater. Using 5 M NaCl as the draw solution, the flux was approximately $6L/m^2-hr$ during the treatment of low range wastewater (TDS: 66,000 mg/L). Nevertheless, AGMD was more effective to treat high range wastewater (Total Dissolved Solid: 260,000 mg/L) than FO.
Keywords
Shale Gas; Water Treatment; Membrane Distillation; Forward Osmosis; Plant;
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