Carbon nanotube based Janus composite membrane of oil fouling resistance for direct contact membrane distillation

2020 ◽  
Vol 607 ◽  
pp. 118078 ◽  
Author(s):  
Minyuan Han ◽  
Ting Dong ◽  
Deyin Hou ◽  
Jingmei Yao ◽  
Le Han
Keyword(s):  
Carbon Nanotube ◽  
Composite Membrane ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Fouling Resistance ◽  
Direct Contact Membrane Distillation ◽  
Oil Fouling

scholarly journals Enhanced Performance of Carbon Nanotube Immobilized Membrane for the Treatment of High Salinity Produced Water via Direct Contact Membrane Distillation

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 325 ◽  
Author(s):  
Madihah Saud Humoud ◽  
Sagar Roy ◽  
Somenath Mitra
Keyword(s):  
Carbon Nanotube ◽  
Membrane Fouling ◽  
Direct Contact ◽  
Produced Water ◽  
High Salinity ◽  
Membrane Surface ◽  
Membrane Distillation ◽  
Vapor Flux ◽  
Ptfe Membrane ◽  
Direct Contact Membrane Distillation

Membrane distillation (MD) is a promising desalination technology for the treatment of high salinity water. Here, we investigated the fouling characteristics of produced water obtained from hydraulic fracturing by implementing a carbon nanotube immobilized membrane (CNIM) via direct contact membrane distillation. The CNIM exhibited enhanced water vapor flux and antifouling characteristics compared to the pristine membrane. The normalized flux decline with the polytetrafluoroethylene (PTFE) membrane after 7 h of operation was found to be 18.2% more than the CNIM. The addition of 1-Hydroxy Ethylidene-1, 1-Diphosphonic acid (HEDP) antiscalant was found to be effective in reducing the membrane fouling. The salt deposition on the membrane surface was 77% less in the CNIM, which was further reduced with the addition of HEDP in the feed by up to 135.4% in comparison with the PTFE membrane. The presence of carbon nanotubes (CNTs) on the membrane surface also facilitated the regenerability of the membrane. The results indicated that the CNIM regained 90.9% of its initial water flux after washing, whereas the unmodified PTFE only regained 81.1% of its initial flux after five days of operation.

scholarly journals Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

2010 ◽  
Vol 351 (1-2) ◽  
pp. 36-43 ◽  
Author(s):  
Ludovic F. Dumée ◽  
Kallista Sears ◽  
Jürg Schütz ◽  
Niall Finn ◽  
Chi Huynh ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Direct Contact Membrane Distillation ◽  
Bucky Paper
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