Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition

Suraya Singh, Anthony Njuguna Matheri, Mohamed Belaid, Edison Muzenda

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

The main objective of this study was to determine optimum biogas production by examining the effect of co-digestion of lawn grass with cow dung and pig manure. In order to conduct this experimental research, each of the substrates was co-digested with lawn grass at varying mixing ratios at stable, thermophilic (45 °C) temperatures, over a retention time of 16 days. Results indicated that co-digesting lawn grass with cow dung and/or pig manure may enhance biogas production and methane content. The results also imply that pig manure may be a more appropriate co-substrate to mix with lawn grass as it indicated a longer biogas potential for a relatively extended period of time, particularly when the lawn grass to pig manure mixing ratio was an even 30:30 g. Cow dung and lawn grass at a mixture 20:40 g had the highest biogas production, bio-methane potential. The C:N ratio, however, seems to be the main contributing factor in biogas yield hence the differences in yield for the different mixtures and substrates. Methane content of biogas was at its lowest levels for mono-digestion of lawn grass. However, mono-digesting lawn grass has a higher bio-methane potential and biogas accumulation over time when compared to a mixing ratio of pig manure:lawn grass of 40:20 g. The best possible bio-methane and biogas production were achieved when lawn grass was co-digested with both pig manure and cow manure at the ratio of, a 15:15:30 g which is attributed to the balanced nutrients and buffering in the digester.

Original languageEnglish
Title of host publicationGreen Energy and Technology
PublisherSpringer Verlag
Pages221-243
Number of pages23
Edition9783319636115
DOIs
Publication statusPublished - Jan 1 2018

Publication series

NameGreen Energy and Technology
Number9783319636115
ISSN (Print)1865-3529
ISSN (Electronic)1865-3537

Fingerprint

Manures
Biogas
pig
anoxic conditions
digestion
manure
biogas
grass
Methane
methane
mixing ratio
Substrates
substrate
Nutrients
buffering
nutrient

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering
  • Management, Monitoring, Policy and Law

Cite this

Singh, S., Matheri, A. N., Belaid, M., & Muzenda, E. (2018). Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition. In Green Energy and Technology (9783319636115 ed., pp. 221-243). (Green Energy and Technology; No. 9783319636115). Springer Verlag. https://doi.org/10.1007/978-3-319-63612-2_14
Singh, Suraya ; Matheri, Anthony Njuguna ; Belaid, Mohamed ; Muzenda, Edison. / Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition. Green Energy and Technology. 9783319636115. ed. Springer Verlag, 2018. pp. 221-243 (Green Energy and Technology; 9783319636115).
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Singh, S, Matheri, AN, Belaid, M & Muzenda, E 2018, Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition. in Green Energy and Technology. 9783319636115 edn, Green Energy and Technology, no. 9783319636115, Springer Verlag, pp. 221-243. https://doi.org/10.1007/978-3-319-63612-2_14

Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition. / Singh, Suraya; Matheri, Anthony Njuguna; Belaid, Mohamed; Muzenda, Edison.

Green Energy and Technology. 9783319636115. ed. Springer Verlag, 2018. p. 221-243 (Green Energy and Technology; No. 9783319636115).

Research output: Chapter in Book/Report/Conference proceedingChapter

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Singh S, Matheri AN, Belaid M, Muzenda E. Co-digestion of lawn grass with cow dung and pig manure under anaerobic condition. In Green Energy and Technology. 9783319636115 ed. Springer Verlag. 2018. p. 221-243. (Green Energy and Technology; 9783319636115). https://doi.org/10.1007/978-3-319-63612-2_14