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Updated: Mar 25, 2026

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
Hydrogen production in microbial reverse-electrodialysis electrolysis cells using a substrate without buffer solution
Young-Hyun Song1, Syarif Hidayat1, Han-Ki Kim2
1Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 133-791, Republic of Korea.
Abstract:
The aim of this work was to use substrate without buffer solution in a microbial reverse-electrodialysis electrolysis cell (MREC) for hydrogen production under continuous flow condition (10 cell pairs of RED stacks, HRT=5, 7.5, and 15h). Decreasing in the HRT (increasing in the organic matter) made cell current stable and increased. Hydrogen gas was produced at a rate of 0.61m(3)-H2/m(3)-Van/d in H-MREC, with a COD removal efficiency of 81% (1.55g/L/d) and a Coulombic efficiency of 41%. This MREC system without buffer solution could successfully produce hydrogen gas at a consistent rate.
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