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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.6 pp.425-431
DOI : https://doi.org/10.14579/MEMBRANE_JOURNAL.2013.23.6.425

셀룰로오스에 의한 지지체 친수화가 압력지연삼투막 성능에 미치는 영향

최 명 호*,**, 구 기 갑**, 임 정 애*, 김 범 식*,†
*한국화학연구원 환경자원공정연구센터, **서강대학교 화공생명공학과

Hydrophilizing Effect of Support on PRO Membrane Performance through Cellulose Solution Treatment

BeomSik Kim*,†, Myungho Choi*,**, Kee Kahb Koo**, Jung Ae Lim*
*Environmental Resoureces and Process Research Center, Korea Research Institute of Chemical Technology, Daejeon 305-343, Korea
**Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 121-742, Korea
(Received October 22, 2013, Revised December 10, 2013, Accepted December 19, 2013)

Abstract

This paper has studied the hydrophilizing effect of support on the performance of pressure retarded osmosis(PRO). The hydrophilicity of polyester support has been controlled with cellulose solutions. In order to investigate the effectof hydrophilizing of support, the performance test has been conducted with membrane which compose of active layer andsupport in absence of support layer. The active layer has been made by casting of cellulose tri-acetate (CTA) 1,4-dioxanesolution (13 wt%) and combined with the hydrophilized support. The results show that water fluxes of PRO membraneswith hydrophobic or hydrophilized support were measured 0.8 L/m2hr and 1.2 L/m2hr under 5 kgf/cm2pressure, respectively.However, water flux increase did not accord with hydrophilicity of supports treated by cellulose solutions. It is because the porosity and pore size of supports decrease as the cellulose concentration increases. This result confirms that both the hydrophilizationof support and the maintenance of membrane porosity are important to enhance the performance of PROmembrane.

  

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