Performance evaluation of carbon nanotube enhanced membranes for SWRO pretreatment application

Jieun Lee, Sanghyun Jeong, Gayathri Naidu, Yun Ye, Vicki Chen, Zongwen Liu, Saravanamuthu Vigneswaran

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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.
Original languageEnglish (US)
Pages (from-to)123-131
Number of pages9
JournalJournal of Industrial and Engineering Chemistry
Volume38
DOIs
StatePublished - Apr 29 2016

ASJC Scopus subject areas

  • Chemical Engineering(all)

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