Full-scale agricultural biogas plant metal content and process parameters in relation to bacterial and archaeal microbial communities over 2.5 year span.
A start-up of 4 MW agricultural biogas plant in Vučja vas, Slovenia, was monitored from 2011 to 2014. The start-up was carried out in 3 weeks with the intake of biomass from three operating full-scale 1–2 MW donor agricultural biogas plants. The samples were taken from donor digesters and from two s...
| Publicado en: | Journal of Environmental Management Vol. 213; pp. 566 - 575 |
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| Autores principales: | , , , , , |
| Formato: | Artículo |
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Academic Press Inc.
May2018
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=128416101&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 128416101 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: May2018 vid: 213 pid: 735 pub: Academic Press Inc. artinfo: ui: 128416101 10.1016/j.jenvman.2018.02.058 ppf: 566 ppct: 9 formats: tig: atl: Full-scale agricultural biogas plant metal content and process parameters in relation to bacterial and archaeal microbial communities over 2.5 year span. aug: au: Repinc, Sabina Kolbl Šket, Robert Zavec, Domen Mikuš, Katarina Vogel Fermoso, Fernando G. Stres, Blaž affil: Institute of Sanitary Engineering, Faculty of Civil and Geodetic Engineering, Jamova 2, Ljubljana, Slovenia Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Ljubljana, Slovenia Instituto de la Grassa, CSIC, Seville, Spain University of Ljubljana, Faculty of Medicine, Ljubljana, Vrazov trg 2, Ljubljana, Slovenia su: Biogas Microorganisms Activated carbon Renewable energy sources Lignocellulose sug: subj: All Other Miscellaneous Chemical Product and Preparation Manufacturing All other miscellaneous chemical product manufacturing Biogas Microorganisms Activated carbon Renewable energy sources Lignocellulose keyword: Anaerobic digestion Biogas plant Humic acids Metals Start-up XRF Anaerobic digestion Biogas plant Humic acids Metals Start-up XRF ab: A start-up of 4 MW agricultural biogas plant in Vučja vas, Slovenia, was monitored from 2011 to 2014. The start-up was carried out in 3 weeks with the intake of biomass from three operating full-scale 1–2 MW donor agricultural biogas plants. The samples were taken from donor digesters and from two serial digesters during the start-up over the course of 2.5 years. Bacterial and Archaeal microbial communities progressively diverged from the composition of donor digesters during the start-up phase. The rate of change of Bacterial community decreased exponentially over the first 2.5 years as dynamics within the first 70 days was comparable to that of the next 1.5 years, whereas approximately constant rate was observed for Archaea. Despite rearrangements, the microbial communities remained functionally stable and produced biogas throughout the whole 2.5 years of observation. All systems parameters measured were ordered according to their Kernel density (Gaussian function) ranging from the most dispersed (substrate categories used as cosubstrates, quantities of each cosubstrate, substate dry and volatile matter, process parameters) towards progressively least dispersed (trace metal and ion profiles, aromatic-polyphenolic compounds, biogas plant functional output (energy)). No deficiency was detected in trace metal content as the distribution of metals and elements fluctuated within the suggested limits for biogas over 2.5 year observation. In contrast to the recorded process variables, Bacterial and Archaeal microbial communities exhibited directed changes oriented in time. Variation partitioning showed that a large fraction of variability in the Bacterial and Archaeal microbial communities (55% and 61%, respectively) remained unexplained despite numerous measured variables (n = 44) and stable biogas production. Our results show that the observed reorganization of microbial communities was not directly associated with impact on the full-scale biogas reactor performance. Novel parameters need to be determined to elucidate the variables directly associated with the reorganization of microbial communities and those relevant for sustained function such as the more in-depth interaction between TSOC, trace metal profiles, aromatic-polyphenolic compounds and ionic strength (e.g. electrical conductivity). pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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