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3 Biotech

, 7:47 | Cite as

Biotechnological application of sustainable biogas production through dry anaerobic digestion of Napier grass

  • Natthawud DussadeeEmail author
  • Rameshprabu Ramaraj
  • Tapana Cheunbarn
Original Article

Abstract

Napier grass (Pennisetum purpureum), represents an interesting substrate for biogas production. The research project evaluated biogas potential production from dry anaerobic digestion of Napier grass using batch experiment. To enhance the biogas production from ensiled Napier grass, thermal and alkaline pre-treatments were performed in batch mode. Alkali hydrolysis of Napier grass was performed prior to batch dry anaerobic digestion at three different mild concentrations of sodium hydroxide (NaOH). The study results confirmed that NaOH pretreated sample produced high yield of biogas than untreated (raw) and hot water pretreated samples. Napier grass was used as the mono-substrate. The biogas composition of carbon dioxide (30.10%), methane (63.50%) and 5 ppm of H2S was estimated from the biogas. Therefore, fast-growing, high-yielding and organic matter-enriched of Napier grass was promising energy crop for biogas production.

Keywords

Biogas Dry anaerobic digestion LBR Napier grass Pretreatment 

Notes

Acknowledgements

This research scheme was supported by the Energy Policy and Planning Office, Ministry of Energy (Thailand) and Energy Research Center of Maejo University, Sansai, Chiang Mai, Thailand. The authors would like to thank all contributors of this study.

Compliance with ethical standards

Conflict of interest

All the authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Natthawud Dussadee
    • 1
    Email author
  • Rameshprabu Ramaraj
    • 1
  • Tapana Cheunbarn
    • 2
  1. 1.School of Renewable EnergyMaejo UniversityChiang MaiThailand
  2. 2.Division of Biotechnology, Faculty of ScienceMaejo UniversityChiang MaiThailand

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