Carbon nanotube enhanced membrane distillation for simultaneous generation of pure water and concentrating pharmaceutical waste

Ken Gethard, Ornthida Sae-Khow, Somenath Mitra

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Carbon nanotube enhanced membrane distillation (MD) is presented as a novel waste concentration method that also generates pure water. In a carbon nanotube immobilized membrane (CNIM), the CNTs serve as sorbent sites, and provide an additional pathway for enhanced water vapor transport. Enrichment effect and mass transfer coefficients using CNIM were as much as 421% and 543% greater than in membranes without the nanotubes. As compared to the original water, the purified water contained less than 10% of residual organics.

Original languageEnglish (US)
Pages (from-to)239-245
Number of pages7
JournalSeparation and Purification Technology
Volume90
DOIs
StatePublished - Apr 27 2012

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Filtration and Separation

Keywords

  • Carbon nanotubes
  • Hollow fiber membrane
  • Membrane distillation
  • Waste treatment

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