Membranes for Osmotic Power Generation by Reverse Electrodialysis

In recent years, the utilization of the selective ion transport through porous membranes for osmotic power generation (blue energy) has received a lot of attention. The principal of power generation using the porous membranes is same as that of conventional reverse electrodialysis (RED), but nonporo...

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Main Author: Md. Mushfequr Rahman
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/13/2/164
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author Md. Mushfequr Rahman
author_facet Md. Mushfequr Rahman
author_sort Md. Mushfequr Rahman
collection DOAJ
description In recent years, the utilization of the selective ion transport through porous membranes for osmotic power generation (blue energy) has received a lot of attention. The principal of power generation using the porous membranes is same as that of conventional reverse electrodialysis (RED), but nonporous ion exchange membranes are conventionally used for RED. The ion transport mechanisms through the porous and nonporous membranes are considerably different. Unlike the conventional nonporous membranes, the ion transport through the porous membranes is largely dictated by the principles of nanofluidics. This owes to the fact that the osmotic power generation via selective ion transport through porous membranes is often referred to as nanofluidic reverse electrodialysis (NRED) or nanopore-based power generation (NPG). While RED using nonporous membranes has already been implemented on a pilot-plant scale, the progress of NRED/NPG has so far been limited in the development of small-scale, novel, porous membrane materials. The aim of this review is to provide an overview of the membrane design concepts of nanofluidic porous membranes for NPG/NRED. A brief description of material design concepts of conventional nonporous membranes for RED is provided as well.
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spelling doaj.art-ccaaa2f22f1c4e94a5f826899874afa82023-11-16T22:02:13ZengMDPI AGMembranes2077-03752023-01-0113216410.3390/membranes13020164Membranes for Osmotic Power Generation by Reverse ElectrodialysisMd. Mushfequr Rahman0Helmholtz-Zentrum Hereon, Institute of Membrane Research, Max-Planck-Straße 1, 21502 Geesthacht, GermanyIn recent years, the utilization of the selective ion transport through porous membranes for osmotic power generation (blue energy) has received a lot of attention. The principal of power generation using the porous membranes is same as that of conventional reverse electrodialysis (RED), but nonporous ion exchange membranes are conventionally used for RED. The ion transport mechanisms through the porous and nonporous membranes are considerably different. Unlike the conventional nonporous membranes, the ion transport through the porous membranes is largely dictated by the principles of nanofluidics. This owes to the fact that the osmotic power generation via selective ion transport through porous membranes is often referred to as nanofluidic reverse electrodialysis (NRED) or nanopore-based power generation (NPG). While RED using nonporous membranes has already been implemented on a pilot-plant scale, the progress of NRED/NPG has so far been limited in the development of small-scale, novel, porous membrane materials. The aim of this review is to provide an overview of the membrane design concepts of nanofluidic porous membranes for NPG/NRED. A brief description of material design concepts of conventional nonporous membranes for RED is provided as well.https://www.mdpi.com/2077-0375/13/2/164reverse electrodialysisosmotic powerblue energyporous membraneion selective membrane
spellingShingle Md. Mushfequr Rahman
Membranes for Osmotic Power Generation by Reverse Electrodialysis
Membranes
reverse electrodialysis
osmotic power
blue energy
porous membrane
ion selective membrane
title Membranes for Osmotic Power Generation by Reverse Electrodialysis
title_full Membranes for Osmotic Power Generation by Reverse Electrodialysis
title_fullStr Membranes for Osmotic Power Generation by Reverse Electrodialysis
title_full_unstemmed Membranes for Osmotic Power Generation by Reverse Electrodialysis
title_short Membranes for Osmotic Power Generation by Reverse Electrodialysis
title_sort membranes for osmotic power generation by reverse electrodialysis
topic reverse electrodialysis
osmotic power
blue energy
porous membrane
ion selective membrane
url https://www.mdpi.com/2077-0375/13/2/164
work_keys_str_mv AT mdmushfequrrahman membranesforosmoticpowergenerationbyreverseelectrodialysis