Journal of Environment and Safety
Online ISSN : 2186-3725
Print ISSN : 1884-4375
ISSN-L : 1884-4375
Volume 11 , Issue 1
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Topic & Report
  • Koji Yamano, Yuka Yakushiji, Masahumi Yoshida, Kento Araki, Jun Kobaya ...
    Type: Topic & Report
    2020 Volume 11 Issue 1 Pages 1-6
    Published: April 30, 2020
    Released: April 30, 2020
    [Advance publication] Released: February 03, 2020

    In order to use chicken manure in methane fermentation, it is necessary to reduce the inhibition of fermentation by ammonia. In this study, we investigated ammonia removal from chicken manure by ultra-high temperature solubilization.

    The amount of ammonia removed from chicken manure was 0.41 mg / L under room temperature conditions and 0.85 mg / L under high temperature solubilization (80℃, add MU3 strain) conditions. From this result, it was confirmed that the removal effect by high temperature solubilization method is twice or more.

    In addition, as a result of continuous tests of methane fermentation, the pH in the methane fermentation tank has been transitioned between 7.4 and 7.8, and the ORP has been transitioned between -460 and -410 mV. It was confirmed to be pH (6.5 to 8.2) and ORP (-150 mV or less). The biogas composition result confirmed the content of 56% of methane gas as a result of gas analysis by GC-TCD.

    From the above results, it was shown that chicken feces could be used for methane fermentation by pretreatment with high temperature solubilization method.

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