2012 Fiscal Year Final Research Report
Development of pressure retarded osmosis system using a novel ionic- barrier charged-membrane
| Project/Area Number |
22360411
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Energy engineering
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| Research Institution | Yamaguchi University |
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Principal Investigator |
HIGA Mitsuru 山口大学, 大学院・理工学研究科, 教授 (30241251)
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| Co-Investigator(Kenkyū-buntansha) |
ENDOU Nobutaka 山口大学, 大学院・理工学研究科, 助教授 (40314819)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 浸透圧発電 / 正浸透 / イオンバリアー膜 / 積層荷電膜 |
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| Research Abstract |
A forward osmosis (FO) membrane with high ionic barrier properties and high water permeability is needed for commercial pressure retarded osmosis (PRO) power plants that use the FO phenomenon caused by the osmotic difference between salty water and fresh water. A novel ionic-barrier (IB) charged-membrane was developed which has high FO performance. An FO/PRO performance evaluation system for a flat-sheet membrane was developed. The prepared IB charged membrane has higher ionic barrier properties and higher water permselectivity than commercial FO membranes with no charged groups because of the fixed-charged groups of the IB charged membrane. Hence, a PRO system using the IB charged membrane will have high performance for PRO power generation.
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