Seawater, Brackish Waters, and Natural Waters Treatment with Hybrid Membrane Processes

Author(s):  
Maxime Pontié ◽  
Catherine Charcosset
Membranes ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 281
Author(s):  
Raffaele Molinari ◽  
Cristina Lavorato ◽  
Pietro Argurio

The rapid urbanization and water shortage impose an urgent need in improving sustainable water management without compromising the socioeconomic development all around the world. In this context, reclaimed wastewater has been recognized as a sustainable water management strategy since it represents an alternative water resource for non-potable or (indirect) potable use. The conventional wastewater remediation approaches for the removal of different emerging contaminants (pharmaceuticals, dyes, metal ions, etc.) are unable to remove/destroy them completely. Hybrid membrane processes (HMPs) are a powerful solution for removing emerging pollutants from wastewater. On this aspect, the present paper focused on HMPs obtained by the synergic coupling of biological and/or chemical reaction driven processes with membrane processes, giving a critical overview and particular emphasis on some case studies reported in the pertinent literature. By using these processes, a satisfactory quality of treated water can be achieved, permitting its sustainable reuse in the hydrologic cycle while minimizing environmental and economic impact.


2013 ◽  
Vol 295-298 ◽  
pp. 1456-1462 ◽  
Author(s):  
K. E. Ting ◽  
H.T. Ng ◽  
H.C. Li

The application of the concepts in oil and gas distillation to membrane desalination process to lower the energy cost for seawater desalination was studied in this paper. Drawing on the close analogy between multistage RO and conventional distillation separation processes, a hybrid membrane processes employing reflux and recycle concepts was developed. Reflux in membrane processes involves taking a portion of the effluent stream on the high pressure side and sending it to the low pressure side of the membrane, while recycle involves taking a portion of the permeate stream on the low pressure side and sending it to the high pressure side of the membrane. A predictive model was developed to study the effect of reflux and recycle on the specific energy consumption (SEC) and permeate quality when compared to conventional systems. In this study, the water permeability coefficients of membranes and brine recycle ratios were investigated. The results show that the SEC for a hybrid membrane processes comprising of RO and NF membrane was lower than conventional methods with the same recovery and feed concentration, suggesting that it is feasible to apply reflux and recycle concepts of distillation on desalination. Through the careful selection of RO membranes and NF membranes, benefits of reflux and recycle can be enjoyed for seawater desalination.


Chemosphere ◽  
2020 ◽  
Vol 254 ◽  
pp. 126696 ◽  
Author(s):  
I. Fuoco ◽  
A. Figoli ◽  
A. Criscuoli ◽  
G. Brozzo ◽  
R. De Rosa ◽  
...  

2012 ◽  
Vol 411-412 ◽  
pp. 1-12 ◽  
Author(s):  
Céline Stoquart ◽  
Pierre Servais ◽  
Pierre R. Bérubé ◽  
Benoit Barbeau

Desalination ◽  
2007 ◽  
Vol 202 (1-3) ◽  
pp. 239-246 ◽  
Author(s):  
C.W. Lee ◽  
S.D. Bae ◽  
S.W. Han ◽  
L.S. Kang

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