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http://dx.doi.org/10.11001/jksww.2016.30.5.553

The effect of backing layer for pro membranes and modules  

Han, Man Jae (Toray Chemical Korea Inc., R&D Institute)
Jeon, Eun Joo (Toray Chemical Korea Inc., R&D Institute)
Sim, Yeon-Ju (Toray Chemical Korea Inc., R&D Institute)
Lee, Jong Hwa (Toray Chemical Korea Inc., R&D Institute)
Publication Information
Journal of Korean Society of Water and Wastewater / v.30, no.5, 2016 , pp. 553-559 More about this Journal
Abstract
There has been increasing global interest in the environmental pollution problems produced by fossil fuel consumption and greenhouse gas emissions. In order to tackle these issues, new renewable energy such as solar, wind, bio gas, fuel cell and pressure retarded osmosis(PRO) have been developed extensively. Among these energy sources, PRO is one of the salinity gradient power generation methods. In PRO, energy is obtained by the osmotic pressure generated from the concentration difference between high and low concentration solutions separated by a semipermeable membrane. The development for high power density PRO membranes is imperative with the purpose of commercialization. This study investigates development of thin film composite PRO membrane and spiral wound module for high power density. Also, the influence of membrane backing layer on power density was identified, and the characteristic factors of PRO membranes was determined. Different backing layers were used to improve power density. As expected, the PRO membrane with more porous backing layer showed higher power density.
Keywords
Backing layer; Power density; Pressure retarded osmosis; Thin-film composite membrane;
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