Quantifying the percentage of methane formation via acetoclastic and syntrophic acetate oxidation pathways in anaerobic digesters

Simple item page
dc.contributor.authorJiang, Ying
dc.contributor.authorBanks, Charles
dc.contributor.authorZhang, Yue
dc.contributor.authorHeaven, Sonia
dc.contributor.authorLonghurst, Philip J.
dc.date.accessioned2017-04-11T08:53:05Z
dc.date.available2017-04-11T08:53:05Z
dc.date.issued2017-04-07
dc.description.abstractAmmonia concentration is one of the key factors influencing the methanogenic community composition and dominant methanogenic pathway in anaerobic digesters. This study adopted a radiolabelling technique using [2-14C] acetate to investigate the relationship between total ammonia nitrogen (TAN) and the methanogenic pathway. The radiolabelling experiments determined the ratio of 14CO2 and 14CH4 in the biogas which was used to quantitatively determine the percentage of CH4 derived from acetoclastic and syntrophic acetate oxidation routes, respectively. This technique was performed on a selection of mesophilic digesters representing samples of low to high TAN concentrations (0.2–11.1 g kg−1 wet weight). In high TAN digesters, the ratio between 14CO2 and 14CH4 was in the range 2.1–3.0; indicating 68–75% of methane was produced via the hydrogenotrophic route; whereas in low ammonia samples the ratio was 0.1–0.3, indicating 9–23% of methane was produced by the hydrogenotrophic route. These findings have been confirmed further by phylogenetic studies.en_UK
dc.identifier.citationJiang Y, Banks CJ, Zhang Y, et al., (2018) Quantifying the percentage of methane formation via acetoclastic and syntrophic acetate oxidation pathways in anaerobic digesters, Waste Management, Volume 71, January 2018, pp. 749-756en_UK
dc.identifier.cris17220881
dc.identifier.issn0956-053X
dc.identifier.urihttp://doi.org/10.1016/j.wasman.2017.04.005
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11760
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectFood wasteen_UK
dc.subjectAnaerobic digestionen_UK
dc.subjectMethanogenic pathwayen_UK
dc.subjectRadioactive isotope labellingen_UK
dc.subjectAmmonia inhibitionen_UK
dc.titleQuantifying the percentage of methane formation via acetoclastic and syntrophic acetate oxidation pathways in anaerobic digestersen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
methane_formation_via-oxidation_pathways-2017.pdf
Size:
714.54 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)