Scale Up of Biogas Starter Production: Enrichment of Activated Sludge from Biogas for Bio-Hydrogen Production

Authors

  • Septina Is Heriyanti Badan Pengkajian dan Penerapan Teknologi
  • Joni Prasetyo Badan Pengkajian dan Penerapan Teknologi
  • Galuh Wirama Murti Badan Pengkajian dan Penerapan Teknologi
  • Atti Sholihah Badan Pengkajian dan Penerapan Teknologi
  • Arya Bhaskara Adiprabowo Badan Pengkajian dan Penerapan Teknologi

DOI:

https://doi.org/10.32493/jitk.v5i2.11101

Keywords:

biogas starter, POME, cow manure, fermenter 1m3, anaerobic digestion, activated sludge, biohydrogen

Abstract

POME as liquid waste from palm oil processing has a high organic content so it is suitable for anaerobic digestion process to produce biogas and bio-hydrogen. This study aims to prepare activated sludge from biogas starter which will be used for bio-hydrogen production. The production of biogas starter with cow dung using POME as feed and the addition of nutrients (urea and DAP) at a certain ratio and buffer (soda ash) was carried out in a fermenter with a capacity of 1 m3 using a fed batch system. During one month of fermentation, methane concentration in biogas increased and stabilized until it reached the highest concentration at 33,7%. The fermentation process also produces hydrogen whose concentration decreases with time because hydrogen-producing microbes are dominant at the beginning of the fermentation, but then the hydrogen produced was consumed by methanogenic bacteria to produce CO2 and CH4. This confirmed that the activated sludge produced from the 1 m3 fermenter contained hydrogen-producing bacteria which were then further processed, one of which was heating at a certain temperature, to suppress the growth of methanogenic bacteria.

References

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Published

2021-07-29

How to Cite

Heriyanti, S. I., Prasetyo, J., Murti, G. W., Sholihah, A., & Adiprabowo, A. B. (2021). Scale Up of Biogas Starter Production: Enrichment of Activated Sludge from Biogas for Bio-Hydrogen Production. Jurnal Ilmiah Teknik Kimia, 5(2), 115–123. https://doi.org/10.32493/jitk.v5i2.11101

Issue

Vol. 5 No. 2 (2021): JURNAL ILMIAH TEKNIK KIMIA

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Articles

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