화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.38, 123-131, June, 2016
DOI10.1016/j.jiec.2016.04.012  Export Citation
Performance evaluation of carbon nanotube enhanced membranes for SWRO pretreatment application
Jieun Lee1, Sanghyun Jeong2, 3, Gayathri Naidu2, 4, Yun Ye5, Vicki Chen5, Zongwen Liu1, and Saravanamuthu Vigneswaran2, 4, †
  • 1School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
  • 2Faculty of Engineering and IT, University of Technology, Sydney (UTS), PO Box 123, Broadway, NSW 2007, Australia
  • 3Water Desalination and Reuse Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
  • 4, Australia
  • 5UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, NSW, Australia
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Multi-wall carbon nanotube (MWCNT) membrane was tested for SWRO pretreatment. The MWCNT membrane itself showed a superior permeate flux (321.3 LMH/bar), which was 4-times as polyethersulfone ultrafiltration (PES-UF) membrane. Reduction of dissolved organic matter improved to 66% with fewer amounts of powder activated carbon (PAC) (0.5 g/L) in MWCNT membrane filtration maintaining a high permeate flux of 600 LMH/bar. It was due to the increased porosity (84.5%) and hydrophilicity (52.9°) by incorporating MWCNT/polyaniline into PES membrane. Ionic strength affected organic removal in seawater filtration by altering electrostatic interaction between organic matter and surface charge of the positively charged MWCNT membrane.
Keywords:Adsorption;Carbon nanotube membrane;Seawater organic matter;Seawater pretreatment;Ultrafiltration
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