Effect of substrate to inoculum ratio on methane production and organic matter removal during solid state anaerobic digestion of beef manure and sawdust mixture

Seung Hun Lee, Hyeon Soo Jo, Myung Gyu Lee, Mitsuyasu Yabe, Heekwon Ahn

研究成果: ジャーナルへの寄稿記事

抄録

This study was conducted to determine the optimal substrate/inoculum (S/I) ratio for solid state anaerobic digestion (SS-AD) of beef manure and sawdust bedding mixtures. The organic material removal and methane yield performance were evaluated at five different S/I levels (1,2,4, 50, and beef manure alone on a VS basis) for 49 days at 37°C. Results showed that biodegradable volatile solids (BVS) reduction of beef manure alone test unit was 76% which was not significantly different from the rest of all inoculated test units. The methane production potential of all five test units showed similar levels (135 to 154 mL/g VS), regardless of S/I ratio. Although it showed similar methane production potential, the beef manure alone and S/I ratio 50 test units showed the highest methane yields of 7.3 and 7.2 based on the volume of methane pro-duced per volume of digester, respectively. In addition, when considering utilization efficiency of the available digester volume, the beef manure alone treatment was 15% higher than that of the S/I ratio 50 treatment. These results reveal that the beef manure and sawdust bedding mixture does not require inoculation to improve SS-AD performance.

元の言語英語
ページ(範囲)197-203
ページ数7
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
62
発行部数1
出版物ステータス出版済み - 2 2017

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Manure
anaerobic digestion
Methane
sawdust
cattle manure
methane production
Digestion
inoculum
organic matter
methane
testing
biodegradability
Red Meat

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

これを引用

Effect of substrate to inoculum ratio on methane production and organic matter removal during solid state anaerobic digestion of beef manure and sawdust mixture. / Lee, Seung Hun; Jo, Hyeon Soo; Lee, Myung Gyu; Yabe, Mitsuyasu; Ahn, Heekwon.

:: Journal of the Faculty of Agriculture, Kyushu University, 巻 62, 番号 1, 02.2017, p. 197-203.

研究成果: ジャーナルへの寄稿記事

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