The DOI matches its Crossref record; 78 of the 78 references it cites were found in a registry or an index.
Role and Potential of Direct Interspecies Electron Transfer in Anaerobic Digestion
Open accessAbstract
Anaerobic digestion (AD) is an effective biological treatment for stabilizing organic compounds in waste/wastewater and in simultaneously producing biogas. However, it is often limited by the slow reaction rates of different microorganisms’ syntrophic biological metabolisms. Stable and fast interspecies electron transfer (IET) between volatile fatty acid-oxidizing bacteria and hydrogenotrophic methanogens is crucial for efficient methanogenesis. In this syntrophic interaction, electrons are exchanged via redox mediators such as hydrogen and formate. Recently, direct IET (DIET) has been revealed as an important IET route for AD. Microorganisms undergoing DIET form interspecies electrical connections via membrane-associated cytochromes and conductive pili; thus, redox mediators are not required for electron exchange. This indicates that DIET is more thermodynamically favorable than indirect IET. Recent studies have shown that conductive materials (e.g., iron oxides, activated carbon, biochar, and carbon fibers) can mediate direct electrical connections for DIET. Microorganisms attach to conductive materials’ surfaces or vice versa according to particle size, and form conductive biofilms or aggregates. Different conductive materials promote DIET and improve AD performance in digesters treating different feedstocks, potentially suggesting a new approach to enhancing AD performance. This review discusses the role and potential of DIET in methanogenic systems, especially with conductive materials for promoting DIET.
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Utilization of biochar for resource recovery from water: A review
Yang, H., Ye, S., Zeng, Z., Zeng, G., Tan, X., Xiao, R., Wang, J., Song, B., Du, L., Qin, M., et al. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2020.125502 · Cited by 230
A critical review on sustainable management and resource utilization of digestate
Guan, D., Zhao, J., Wang, Y., Fu, Z., Zhang, D., Zhang, H., Xie, J., Sun, Y., Zhu, J., & Wang, D. (2024) · Process Safety and Environmental Protection · doi:10.1016/j.psep.2024.01.029 · Cited by 82
Status of biogas production and biogas upgrading: A global scenario
Sravan, J. S., Tharak, A., & Mohan, S. V. (2021) · Emerging Technologies and Biological Systems for Biogas Upgrading · doi:10.1016/b978-0-12-822808-1.00002-7 · Cited by 20
Metadata
- Authors
- Baek, G., Kim, J., Kim, J., & Lee, C.
- Venue
- Energies
- Publisher
- MDPI AG
- Published
- 2018-01-03
- Volume
- 11
- Issue
- 1
- Pages
- 107
- ISSN
- 1996-1073 (ISSN-L)
- OpenAlex
- W2782184736
- Cited by
- 341
- References
- 78
- FWCI
- 14.68
- Type
- journal article
- Language
- en
- Open access
- gold
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