Reverse Electrodialysis

Reverse electrodialysis (RED) is the process of extracting salinity gradient energy from the difference in salt concentration between river and ocean. Professor Sidney Loeb of the Ben-Gurion University of the Negev created a way in 1977 for harnessing the energy generated by this procedure using a heat engine. United States Patent US4171409. A stack of alternating cation and anion exchange membranes used in reverse electrodialysis allows the passage of fresh water and salt solutions. The overall potential of the system is the sum of the potential differences across all membranes. Each membrane creates a voltage due to the chemical potential difference between salt and fresh water. The method relies on a difference in ion concentration rather than an electric field, which has consequences.

Committee Members
Speaker at Catalysis & Reaction Engineering 2026 - Stanislaw Dzwigaj

Stanislaw Dzwigaj

Sorbonne University, France
Speaker at Catalysis & Reaction Engineering 2026 - Dai Yeun Jeong

Dai Yeun Jeong

Asia Climate Change Education Center, Korea, Republic of
Speaker at Catalysis & Reaction Engineering 2026 - Enrico Paris

Enrico Paris

CREA-IT & DIAEE, Italy
Speaker at Catalysis & Reaction Engineering 2026 - Hanna Kierzkowska Pawlak

Hanna Kierzkowska Pawlak

Lodz University of Technology, Poland
CAT 2026 Speakers
Speaker at Catalysis & Reaction Engineering 2026 - Ling Yin

Ling Yin

Cornell University, United States
Speaker at Catalysis & Reaction Engineering 2026 - Tsitsishvili Vladimer

Tsitsishvili Vladimer

Petre Melikishvili Institute of Physical and Organic Chemistry at the Tbilisi State University, Georgia
Speaker at Catalysis & Reaction Engineering 2026 - Rafia Ahmad

Rafia Ahmad

King Abdullah University of Science and Technology, Saudi Arabia
Speaker at Catalysis & Reaction Engineering 2026 - Eun Han Lee

Eun Han Lee

Korea Institute of Energy Research, Korea, Republic of
Speaker at Catalysis & Reaction Engineering 2026 - Neul Ha

Neul Ha

Sungkyunkwan University, Korea, Republic of
Speaker at Catalysis & Reaction Engineering 2026 - Shailza Sharma

Shailza Sharma

RMIT University, Australia
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