Flux enhancement in direct contact membrane distillation by implementing carbon nanotube immobilized PTFE membrane
| Autor: | Somenath Mitra, Madhuleena Bhadra, Sagar Roy |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Mass transfer coefficient
Materials science Polytetrafluoroethylene Filtration and Separation Nanotechnology 02 engineering and technology Carbon nanotube Penetration (firestop) 021001 nanoscience & nanotechnology Membrane distillation Analytical Chemistry law.invention chemistry.chemical_compound Membrane 020401 chemical engineering chemistry Chemical engineering law Permeate flux 0204 chemical engineering 0210 nano-technology Water vapor |
| Zdroj: | Separation and Purification Technology. 161:136-143 |
| ISSN: | 1383-5866 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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