scholarly journals Study of the rectangular cross-flow flat-sheet membrane module for desalination by vacuum membrane distillation

2016 ◽  
Vol 102 ◽  
pp. 169-185 ◽  
Author(s):  
Chel-Ken Chiam ◽  
Rosalam Sarbatly
Keyword(s):  
Cross Flow ◽  
Membrane Distillation ◽  
Membrane Module ◽  
Flat Sheet ◽  
Vacuum Membrane Distillation ◽  
Flat Sheet Membrane ◽  
Sheet Membrane

Performance evaluation of vacuum membrane distillation for desalination by using a flat sheet membrane

2010 ◽  
Vol 21 (1-3) ◽  
pp. 328-334 ◽  
Author(s):  
Bhausaheb L. Pangarkar ◽  
Prashant V. Thorat ◽  
Saroj B. Parjane ◽  
Rajendra M. Abhang
Keyword(s):  
Performance Evaluation ◽  
Membrane Distillation ◽  
Flat Sheet ◽  
Vacuum Membrane Distillation ◽  
Flat Sheet Membrane ◽  
Sheet Membrane

scholarly journals Performance Investigation of O-Ring Vacuum Membrane Distillation Module for Water Desalination

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Adnan Alhathal Alanezi ◽  
H. Abdallah ◽  
E. El-Zanati ◽  
Adnan Ahmad ◽  
Adel O. Sharif
Keyword(s):  
Flow Rate ◽  
Membrane Distillation ◽  
Membrane Module ◽  
Water Desalination ◽  
Feed Flow Rate ◽  
Permeate Flux ◽  
Vacuum Degree ◽  
Flat Sheet ◽  
Vacuum Membrane Distillation ◽  
Feed Temperature

A new O-ring flat sheet membrane module design was used to investigate the performance of Vacuum Membrane Distillation (VMD) for water desalination using two commercial polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) flat sheet hydrophobic membranes. The design of the membrane module proved its applicability for achieving a high heat transfer coefficient of the order of 103 (W/m2 K) and a high Reynolds number (Re). VMD experiments were conducted to measure the heat and mass transfer coefficients within the membrane module. The effects of the process parameters, such as the feed temperature, feed flow rate, vacuum degree, and feed concentration, on the permeate flux have been investigated. The feed temperature, feed flow rate, and vacuum degree play an important role in enhancing the performance of the VMD process; therefore, optimizing all of these parameters is the best way to achieve a high permeate flux. The PTFE membrane showed better performance than the PVDF membrane in VMD desalination. The obtained water flux is relatively high compared to that reported in the literature, reaching 43.8 and 52.6 (kg/m2 h) for PVDF and PTFE, respectively. The salt rejection of NaCl was higher than 99% for both membranes.

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