Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane

Madhuleena Bhadra, Sagar Roy, Somenath Mitra

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Carbon nanotube (CNT) enhanced direct contact membrane distillation (DCMD) is presented for water desalination. We investigated the immobilization of CNTs on a polytetrafluoroethylene (PTFE) membrane. The presence of CNTs on the hydrophobic membrane favorably altered the water-membrane interactions to promote water vapor transport while preventing salt water penetration into the membrane pores. For a salt concentration of 34,000 mg l-1 and at 70 °C, the CNT incorporation led to a 54% enhancement in permeate flux, which was as high as 69 kg/m2 h.

Original languageEnglish (US)
Pages (from-to)136-143
Number of pages8
JournalSeparation and Purification Technology
Volume161
DOIs
StatePublished - Mar 17 2016

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Filtration and Separation

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