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Publication
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| Research Title |
Co-digestion of Napier Grass/Napier Silage with Food Waste for Methane Production |
| Date of Distribution |
15 September 2018 |
| Conference |
| Title of the Conference |
The 13th Asian Biohydrogen & Biorefinery Symposium (ABBS 2018) |
| Organiser |
Henan Agricultural University Huanghe S&T University Collaborative Innovation Center of Biomass Energy，Henan Province Henan Province Society of Agricultural Engineering |
| Conference Place |
Henan Agricultural University |
| Province/State |
Zhengzhou, Henan province, China |
| Conference Date |
14 September 2018 |
| To |
17 September 2018 |
| Proceeding Paper |
| Volume |
- |
| Issue |
- |
| Page |
- |
| Editors/edition/publisher |
- |
| Abstract |
The purpose of this study is to develop methane production process from co-digestion of Napier grass /Napier silage with food waste. Firstly, optimization of the ratio of Napier grass or Napier silage to food waste on methane production was investigated in the batch mode. The ratios of Napier grass/food waste and Napier silage/food waste (g-VS/g-VS) were varied at 4.75:0.25, 4.5:0.5, 4.25:0.75, 4:1, 3:2, 2:3, 1:1 and 1:4, respectively, with an initial substrate concentration of 5 g-VS/L. Maximum methane yield (MY) of 411 and 362 ml-CH4/g-VSadded, respectively, and maximum methane production of 2,054 and 1,808 mL-CH4/L, respectively, were obtained at the respective ratio of Napier grass/food waste and Napier silage/food waste of 1:4 and 3:2. Subsequently, the suitable ratios were used to produce methane at various substrate concentrations. Maximum MY of 403 and 353 mL-CH4/g-VS were attained at substrate concentration of Napier grass/food waste and Napier silage/food waste of 15 g-VS/L and 20 g-VS/L, respectively. Under the optimum concentration, a maximum MY from co-digestion of Napier grass with food waste was 1.14 times higher than that of Napier silage with food waste. Therefore, Napier grass and food waste were co-digested in the horizontal reactor at the optimum ratio of 1:4 and substrate concentration of 15 g-VS/L. The maximum methane production rate and MY of 0.5 L-CH4/L∙d and 0.33 L-CH4/g-VSadded, respectively, were achieved at the optimum organic loading rate of 1.5 g-VS/L∙d. |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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