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Advances in Electricity-Steering Organic Waste Bio-Valorization for Medium Chain Carboxylic Acids Production

Author

Listed:
  • Chao Liu

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Yue Yin

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Chuang Chen

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Xuemeng Zhang

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Jing Zhou

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Qingran Zhang

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

  • Yinguang Chen

    (State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China)

Abstract

Medium chain carboxylic acids (MCCAs, e.g., caproic acid, caprylic acid, etc.) with 6–12 carbon atoms are valuable platform chemicals produced from organic waste via microbial chain elongation metabolism named as reversed β-oxidation and fatty acid-biosynthesis cyclical pathway. Recently, many articles reported that electricity could not only serve as the external electron donor and provide the reduction equivalent required for chain elongation but also regulate the microbiome structure and metabolic behaviors to promote MCCAs formation. Electricity-steering MCCAs bioproduction has become an appealing technique to valorize low-value organic waste, paving an alternative pathway for net-zero carbon emission energy systems and sustainable socio-economic development. However, the MCCAs’ bioproduction from organic waste steered by electric field has not been comprehensively reviewed. From a systematical analysis of publicly available literature, we first covered the basic working principle, fermentation architecture, functional microflora, and metabolic pathway of MCCAs production driven by electricity. The strategies of substrate modulation, applied voltage/current regulation, electrode optimization, and microbial cooperation and stimulation for boosting electricity-driven MCCAs bioproduction are then scrutinized and extensively discussed. Ultimately, the pressing knowledge gaps and the potential path forward are proposed to provide pointers for consistently higher MCCAs yield and the transition from laboratory to market.

Suggested Citation

  • Chao Liu & Yue Yin & Chuang Chen & Xuemeng Zhang & Jing Zhou & Qingran Zhang & Yinguang Chen, 2023. "Advances in Electricity-Steering Organic Waste Bio-Valorization for Medium Chain Carboxylic Acids Production," Energies, MDPI, vol. 16(6), pages 1-22, March.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2571-:d:1091742
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    References listed on IDEAS

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    1. Liu, Panpan & Liang, Peng & Jiang, Yong & Hao, Wen & Miao, Bo & Wang, Donglin & Huang, Xia, 2018. "Stimulated electron transfer inside electroactive biofilm by magnetite for increased performance microbial fuel cell," Applied Energy, Elsevier, vol. 216(C), pages 382-388.
    2. Xuemeng Zhang & Chao Liu & Yuexi Chen & Guanghong Zheng & Yinguang Chen, 2022. "Source separation, transportation, pretreatment, and valorization of municipal solid waste: a critical review," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 24(10), pages 11471-11513, October.
    3. Yongjin J. Zhou & Eduard J. Kerkhoven & Jens Nielsen, 2018. "Barriers and opportunities in bio-based production of hydrocarbons," Nature Energy, Nature, vol. 3(11), pages 925-935, November.
    4. Izadi, Paniz & Fontmorin, Jean-Marie & Virdis, Bernardino & Head, Ian M. & Yu, Eileen H., 2021. "The effect of the polarised cathode, formate and ethanol on chain elongation of acetate in microbial electrosynthesis," Applied Energy, Elsevier, vol. 283(C).
    5. Shuai Bao & Qingyan Wang & Panyue Zhang & Qi Zhang & Yan Wu & Fan Li & Xue Tao & Siqi Wang & Mohammad Nabi & Yazhou Zhou, 2019. "Effect of Acid/Ethanol Ratio on Medium Chain Carboxylate Production with Different VFAs as the Electron Acceptor: Insight into Carbon Balance and Microbial Community," Energies, MDPI, vol. 12(19), pages 1-17, September.
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