Potential of membrane distillation in seawater desalination: Thermal efficiency, sensitivity study and cost estimation

2008 ◽  
Vol 323 (1) ◽  
pp. 85-98 ◽  
Author(s):  
S ALOBAIDANI ◽  
E CURCIO ◽  
F MACEDONIO ◽  
G DIPROFIO ◽  
H ALHINAI ◽  
...  
Desalination ◽  
2015 ◽  
Vol 374 ◽  
pp. 1-9 ◽  
Author(s):  
Hung C. Duong ◽  
Paul Cooper ◽  
Bart Nelemans ◽  
Tzahi Y. Cath ◽  
Long D. Nghiem

2020 ◽  
Vol 58 (5A) ◽  
pp. 115
Author(s):  
Kim Thanh Nguyen ◽  
Hung Cong Duong ◽  
Lan Thi Thu Tran

Membrane distillation (MD) has emerged as a promising technology for seawater desalination to provide drinking water. The most considerable advantage of MD is the capacity to utilize thermal energy to reduce the energy cost of the solar-driven MD seawater desalination systems. However, limited thermal efficiency is one of the key challenges that prevent the wide application of MD for seawater desalination. Due to low thermal efficiency, most solar-driven MD systems require large and complex arrays of solar thermal collectors, leading to the significantly high investment costs of the MD systems. MD membranes coated with solar radiation absorbing materials have been proposed for the solar-driven MD process to obviate the need for large arrays of solar thermal collectors. In this study, we synthesized a novel black spinel-carbon nanocomposite for MD membrane coating to improve the solar radiation absorbance of the membrane, thus enhancing thermal efficiency of the MD system. The preliminary experimental results demonstrated that the black spinel-carbon nanocomposite could absorb light at a wider wavelength range from visible to far-red; therefore, they exhibited increased solar radiation absorbance and hence heating efficiency compared with single materials.


Desalination ◽  
2017 ◽  
Vol 419 ◽  
pp. 160-168 ◽  
Author(s):  
A. Ruiz-Aguirre ◽  
J.A. Andrés-Mañas ◽  
J.M. Fernández-Sevilla ◽  
G. Zaragoza

Author(s):  
Siti Khadijah Hubadillah ◽  
Mohd Hafiz Dzarfan Othman ◽  
Paran Gani ◽  
Ahmad Fauzi Ismail ◽  
Mukhlis A. Rahman ◽  
...  

Author(s):  
Khadije El Kadi ◽  
Isam Janajreh ◽  
Raed Hashaikeh ◽  
Rizwan Ahmed

The amount of refinery water discharged to the environment from oil industry has increased vigorously in current times. Recent research has been focusing on the use of membrane technology for the refinery processed water treatment. Membrane Distillation (MD) is an emerging technology that has been highly marked by its low-energy requirement and high desalination efficiency. However, conventional MD membranes (i.e. PVDF) are not feasible for oil-water separation processes. That is due to the oleo-philic property of the membrane and thus, causes membrane fouling and halts the production of mass flux. An anti-oil-fouling membrane is essential for a successful oil-water separation by MD. Underwater-oleophobic as well as omniphobic are two different approaches in fabricating such membranes. The former approach is based on the asymmetric surface wettability, whereas the latter is attributed to the surface structure that is characterized by having a very large contact angle for all liquids. However, such composite membranes are characterized by their lower porosity, smaller pore size, but with unique surface slippage, in comparable with the conventional PVDF membranes. As such, in this work, high fidelity numerical simulation of DCMD is performed using non-isothermal Computational Fluid Dynamics (CFD) validated model in order to assess the role of the anti-oil-fouling membrane properties on the performance of the DCMD. Results are presented in terms of temperature polarization coefficient, mass flux, latent heat flux, and thermal efficiency. Results show the compromising effect of membrane porosity to 45% reduces the mass flux and thermal efficiency respectively by 68% and 40%, and reduction of pore size to the half (i.e. 50 nm) can cause a reduction by 50.6% in mass flux and 24.18% in thermal efficiency compared to the baseline (i.e. 100 nm). On the other hand, the omniphobic slippage effect leads to a noticeable gain of 16% in DCMD mass flux with slight gain in thermal efficiency. This can maximize mass flux and thermal efficiency to be as much as 50.3 kg/m2 h and 69%, respectively.


2016 ◽  
Vol 29 (2) ◽  
pp. 1603504 ◽  
Author(s):  
Antonio Politano ◽  
Pietro Argurio ◽  
Gianluca Di Profio ◽  
Vanna Sanna ◽  
Anna Cupolillo ◽  
...  

2019 ◽  
Vol 7 (5) ◽  
pp. 2376-2384 ◽  
Author(s):  
Xiaochan An ◽  
Guorong Xu ◽  
Baolei Xie ◽  
Yunxia Hu

Membrane distillation (MD) displays superior characteristics to other technologies to alleviate the ever-increasing freshwater crisis through seawater desalination and/or wastewater recycling.


2014 ◽  
Vol 35 (17) ◽  
pp. 2147-2152 ◽  
Author(s):  
Seungjoon Chung ◽  
Chang Duck Seo ◽  
Jae-Hoon Choi ◽  
Jinwook Chung

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