생체모방형 아쿠아포린 분리막을 이용한 압력지연삼투 발전 성능분석Performance Analysis of Pressure-retarded Osmosis Power Using Biomimetic Aquaporin Membrane
- Authors
- 최욱; 배하림; 이형근; 이종휘; 김종학; 박철호
- Issue Date
- Mar-2015
- Publisher
- POLYMER SOC KOREA
- Keywords
- pressure-retarded osmosis; aquaporin membrane; salinity gradient power
- Citation
- POLYMER-KOREA, v.39, no.2, pp 317 - 322
- Pages
- 6
- Journal Title
- POLYMER-KOREA
- Volume
- 39
- Number
- 2
- Start Page
- 317
- End Page
- 322
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/9857
- DOI
- 10.7317/pk.2015.39.2.317
- ISSN
- 0379-153X
2234-8077
- Abstract
- Salinity gradient power is a system which sustainably generates electricity for 24 hrs, if the system is constructed at a certain place where both seawater and river water are consistently pumped. Since power is critically determined by the water flux and the salt rejection, a membrane of water-semipermeable aquaporin protein in cell membranes was studied for pressure-retarded osmosis. NaCl was used as a salt, and NaNO3 was used as a candidate to check the ion selectivity. The water flux of biomimetic aquaporin membranes was negligible at a concentration below 2 M. Also, there is no remarkable dependence of water flux and ion selectivity on concentrations higher than 3 M. Therefore, the biomimetic aquaporin membrane could not be applied into pressure-retarded osmosis; however, if a membrane could overcome the current limitations, the properties shown by natural cells could be accomplished.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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