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Evaluation of Biogas Production Performance During the Anaerobic Digestion of Lipids with Four or More Double Bonds

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A Correction to this article was published on 10 May 2019

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Abstract

Purpose

The purpose of this study was to investigate the influence of the feed to microorganism ratio (F/M ratio) on the biogas production during the high-efficiency anaerobic digestion of lipids, where 50% of lipids contained four or more double bonds.

Methods

Biochemical methane potential tests were performed at five different F/M ratios, 0.2, 0.4, 0.6, 0.8, and 1.0, under mesophilic conditions. The biogas production patterns, lag-phase, total volatile fatty acids to volatile solid ratio (VFA/VS ratio), and time required for 90% biogas production (T90) were used to evaluate biogas production based on the biochemical methane potential tests.

Results

Biogas production started after 4 days of digestion in all the digesters. The biogas production pattern at an F/M ratio of 1.0 was observed to be different to that previously reported. The methane content was in the stabilized range of more than 50% at all F/M ratios. The T90 was reduced at F/M ratios lower than 0.6.

Conclusions

The lag-phase of anaerobic digestion of lipid with four or more double bonds could be reduced by using an F/M ratio lower than 0.6 and an initial VFA/VS ratio lower than 11%.

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  • 10 May 2019

    Due to a mistake the following articles.

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Funding

This study was supported by 2017 Research Grant from Kangwon National University (520170195) and partially supported by BK 21 plus (No. 31Z20130013003) and NRF-2017R1A2B4010015.

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Authors and Affiliations

  1. Department of Biosystems Engineering, College of Agriculture and Life Sciences, Kangwon National University, 1, Gangwondaehak-gil, Chuncheon, 24341, Republic of Korea

    Min-Jee Kim & Sang-Hun Kim

Authors
  1. Min-Jee Kim
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  2. Sang-Hun Kim
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Corresponding author

Correspondence to Sang-Hun Kim.

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The authors declare that they have no conflict of interests.

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Kim, MJ., Kim, SH. Evaluation of Biogas Production Performance During the Anaerobic Digestion of Lipids with Four or More Double Bonds. J. Biosyst. Eng. 44, 37–40 (2019). https://doi.org/10.1007/s42853-019-00004-2

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  • DOI: https://doi.org/10.1007/s42853-019-00004-2

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