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Ethanol production from artificial domestic household waste solubilized by steam explosion

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Abstract

Solubilization of domestic household waste through steam explosion with subsequent ethanol production by the microbial saccharification and fermentation of the exploded product was studied. The effects of steam explosion on the changes of the density, viscosity, pH, and amounts of extractive components in artificial household waste were determined. The composition of artificial waste used was similar to leftover waste discharged from a typical home in Japan. Consecutive microbial saccharification and fermentation, and simultaneous microbial saccharification and fermentation of the steam-exploded product were attempted usingAspergillus awamori, Trichoderma viride, andSaccharomyces cerevisiae, the ethanol yields of each process were compared. The highest ethanol yield was obtained with simultaneous microbial saccharification and fermentation of exploded product at a steam pressure of 2 MPa and a steaming time of 3 min.

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Authors and Affiliations

  1. Department of Chemistry and Chemical Engineering, Faculty of Engineering, Kanazawa University, 2-40-20 Kodatsuno, 920-8667, Kanazawa, Japan

    Yoshitoshi Nakamura & Tatsuro Sawada

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  1. Yoshitoshi Nakamura
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  2. Tatsuro Sawada
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Correspondence to Yoshitoshi Nakamura.

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Nakamura, Y., Sawada, T. Ethanol production from artificial domestic household waste solubilized by steam explosion. Biotechnol. Bioprocess Eng. 8, 205–209 (2003). https://doi.org/10.1007/BF02935898

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  • DOI: https://doi.org/10.1007/BF02935898

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