Microbial Electrolysis Cell Exergy Evaluation

Author:

Nenov Valentin1ORCID,Atanasova Lyubka1,Yemendzhiev Hyusein1,Koleva Ralitza1ORCID

Affiliation:

1. Department of Chemical Technologies, Faculty of Technical Sceince, “Prof. Asen Zlatarov” Universty, Y. Yakimov Blvd No. 1, 8010 Burgas, Bulgaria

Abstract

Bio-electrochemical systems have increasingly become the focus of research due to their potential in environmental biotechnology, particularly in the domains of waste utilization and energy recovery. A prominent method within this domain is the transformation of organic matter into hydrogen via microbial electrolysis cells (MECs). This study offers a thorough analysis of MEC performance, employing exergy analysis and incorporating relevant data from the existing literature. The findings of this research indicate a relationship between process efficiency and effective electron transfer originating from biological oxidation to the cathode reaction, facilitating hydrogen generation. The assessment performed revealed that the exergy efficiency of the process varies by a wide range, depending on conditions such as substrate type and concentration, applied external voltage, and the presence of specific inhibitors. This interplay between substrate concentration, overall efficiency, and energy requirement underlines the complex dynamics of optimizing MEC performance. Our insights provide understanding of the challenges in bio-electrochemical systems, offering implications for their sustainable and efficient use in environmental biotechnology. The theoretical analysis involved assessing the utilization of glucose and glycerol, along with the evaluation of electrical energy consumption and hydrogen yield. Our results demonstrate that a higher applied voltage is associated with greater exergy efficiency. Furthermore, after comparing the use of glucose and glycerol as substrates, our study supports the preferential application of glucose for enhanced efficiency.

Funder

Clean technologies for sustainable environment—water, waste, energy for circular economy

Publisher

MDPI AG

Reference36 articles.

1. Performance optimization of microbial electrolysis cell (MEC) for palm oil mill effluent (POME) wastewater treatment and sustainable Bio-H2 production using response surface methodology (RSM);Kadier;Int. J. Hydrogen Energy,2022

2. Rivera, I., Schröder, U., and Patil, S.A. (2019). Microbial Electrochemical Technology Sustainable Platform for Fuels, Chemicals and Remediation Biomass, Biofuels and Biochemicals, Elsevier.

3. A comprehensive review on two-stage integrative schemes for the valorization of dark fermentative effluents;Sivagurunathan;Crit. Rev. Biotechnol.,2018

4. Hydrogen production by PEM water electrolysis—A review;Kumar;Mater. Sci. Energy Technol.,2019

5. A comprehensive review on hydrogen production through thermochemical conversion of biomass for energy security;Lanjekar;Bioresour. Technol. Rep.,2023

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