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The utilization of acid-tolerant bacteria on ethanol production from kitchen garbage

Author

Listed:
  • Ma, Hongzhi
  • Wang, Qunhui
  • Qian, Dayi
  • Gong, Lijuan
  • Zhang, Wenyu

Abstract

In order to achieve ethanol production from kitchen garbage under non-sterilized fermentation, the acid-tolerant Zymomonas mobilis named GZNS1 was selected and applied in the fermentation system. Ethanol production from kitchen garbage under non-sterilized fermentation with GZNS1 was proved to be feasible. The utilization of control strain and acid-tolerant strain under different conditions demonstrated that the sequence of ethanol yield was followed: sterilized garbage with control strain inoculated under pH of 6 (52g/L)≈sterilized garbage with GZNS1 inoculated under pH of 4 (48g/L)>non-sterilized garbage with GZNS1 inoculated under pH of 4 (46g/L). Furthermore, the distillery waste during fermentation was adopted to recycle fermentation and acquired 50g/L ethanol, higher than those adjusted with tap water. The utilization of acid-tolerant bacteria combing with the utilization of distillery waste associated with the process can increase ethanol production, save energy and reduce the cost of ethanol production.

Suggested Citation

  • Ma, Hongzhi & Wang, Qunhui & Qian, Dayi & Gong, Lijuan & Zhang, Wenyu, 2009. "The utilization of acid-tolerant bacteria on ethanol production from kitchen garbage," Renewable Energy, Elsevier, vol. 34(6), pages 1466-1470.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:6:p:1466-1470
    DOI: 10.1016/j.renene.2008.10.020
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    Cited by:

    1. Mugilan Govindaraju & Kathiresan V. Sathasivam & Kasi Marimuthu, 2021. "Waste to Wealth: Value Recovery from Bakery Wastes," Sustainability, MDPI, vol. 13(5), pages 1-16, March.
    2. Barampouti, E.M. & Mai, S. & Malamis, D. & Moustakas, K. & Loizidou, M., 2019. "Liquid biofuels from the organic fraction of municipal solid waste: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 110(C), pages 298-314.
    3. Hafid, Halimatun Saadiah & Rahman, Nor’ Aini Abdul & Shah, Umi Kalsom Md & Baharuddin, Azhari Samsu & Ariff, Arbakariya B., 2017. "Feasibility of using kitchen waste as future substrate for bioethanol production: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 74(C), pages 671-686.
    4. Karmee, Sanjib Kumar, 2016. "Liquid biofuels from food waste: Current trends, prospect and limitation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 945-953.
    5. Yukio Watanabe & Wataru Aoki & Mitsuyoshi Ueda, 2021. "Sustainable Biological Ammonia Production towards a Carbon-Free Society," Sustainability, MDPI, vol. 13(17), pages 1-13, August.
    6. Ma, Hong-zhi & Xing, Yi & Yu, Miao & Wang, Qunhui, 2014. "Feasibility of converting lactic acid to ethanol in food waste fermentation by immobilized lactate oxidase," Applied Energy, Elsevier, vol. 129(C), pages 89-93.

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