A review on biochemistry, microbiology and thermodynamic aspects of propionate: The key intermediate in the anaerobic digestion and wastewater treatment
This paper provides a comprehensive review of the biochemistry, microbiology, and thermodynamic aspects of propionate (Pr) in anaerobic digestion (AD). Pr is a key intermediate in AD, playing a crucial role in process efficiency due to its unique thermodynamics, microbial interactions, and biochemic...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624002194 |
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| Summary: | This paper provides a comprehensive review of the biochemistry, microbiology, and thermodynamic aspects of propionate (Pr) in anaerobic digestion (AD). Pr is a key intermediate in AD, playing a crucial role in process efficiency due to its unique thermodynamics, microbial interactions, and biochemical metabolic pathways. However, Pr metabolism remains a complex and interconnected process, making it challenging to fully understand and optimize. This paper delves into the intricate mechanisms of Pr metabolism in AD, emphasizing its relationship with sulfate and sulfate-reducing bacteria (SRBs). This review explores the biochemical pathways of Pr production and consumption, elucidating the role of key microorganisms and their interactions. Furthermore, it investigates the relationship between Pr and syntrophic propionate-oxidizing bacteria (SPOB/SRB), examining their impact on Pr. Finally, it investigates the thermodynamics of Pr-related reactions, gaining insights into the factors that influence Pr metabolism. By unraveling the complexities of Pr metabolism in AD, this paper provides valuable knowledge that can be harnessed to enhance process efficiency and manipulate Pr for various purposes. Researchers can use these findings to develop strategies for reducing Pr accumulation and improving biogas production. Additionally, the insights gained into Pr recovery and production can be exploited for the development of novel technologies. |
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| ISSN: | 1944-3986 |