READ ME File For 'Dataset for Simultaneous biomethanisation of endogenous and imported CO2 in organically loaded anaerobic digesters'

Dataset DOI: https://doi.org/10.5258/SOTON/D0896

ReadMe Author: Bing Tao, University of Southampton [ORCID ID: 0000-0001-5716-1858]

This dataset supports the publication:
BingTao, Anna M.Alessi, Yue Zhang, James P.J.Chong, Sonia Heaven, Charles J.Banks
Simultaneous biomethanisation of endogenous and imported CO2 in organically loaded anaerobic digesters
Applied Energy
https://doi.org/10.1016/j.apenergy.2019.04.058


This dataset contains: All data supporting the artilcle titled :Simultaneous biomethanisation of endogenous and imported CO2 in organically loaded anaerobic digesters, which was submitted on 17 December 2018, revised on 28 March 2019 and accepted on 14 April 2019 for publication in Applied Energy. 

Data supporting the artilce 

The figures are as follows:

Fig. 2  Biogas methane content and SMP in phases I and II as a function of time and H2 input (vertical dashed lines) for digesters at (a) 2 and (b) 3 g CODorg L-1 day-1.
Fig. 3  Biogas methane content and SMP in phases I & II as a function of time and H2 input (vertical dashed lines) for digesters at (a) 4 and (b) 5 g CODorg L-1 day-1.
Fig. 4  Monitoring parameters for digesters at 3 g CODorg L-1 day-1 during phase II: (a) volatile solids, (b) ratio Cgas/Cfed and (c) tVFA with H2 input shown as vertical dashed lines.
Fig. 5  Biogas methane content and SMP (excluding exogenous CH4) in phase III for digesters operated at 2 (a) and 3 g CODorg L-1 day-1 (b). Vertical dashed lines show total CO2 availability (endogenous plus imported) as a % of endogenous CO2 in phase I.
Fig. 6  Relative abundance of archaea in the total microbial community at different phases for digesters operated at 2 and 3 CODorg L-1 day-1 (data represent mean for two digesters).
Fig. 7  Average distribution of archaeal community in phase II and III for duplicate digesters operated at 2 and 3 g CODorg L-1 day-1.
Fig. 8  Relative abundance of bacteria family Thermoanaerobacteraceae to total microbial community during phase II and III in digesters operated at 2 and 3 CODorg L-1 day-1 
Fig. 9  pH of digesters at (a) 2 and (b) 3 CODorg L-1 day-1 during phase II and III; H2 inputs are shown by vertical dashed lines.
Fig. 11 pH as a function of CO2 partial pressures for digesters D1&2 (dots, a) and D3&4 (dots, b) during the three phases of experiment, with curve fitted to equation 4.

Fig. S1 Biogas CO2 content as a function of time in all digesters during phase I (conventional AD) for determination of baseline conditions.
Fig. S2 Total volatile fatty acid (VFA) concentrations and its compositional profiles in digesters operated at 2 (a) and 3 (b) gCODorg L-1 day-1 in phase II (in-situ biomethanisation of endogenously-produced CO2).
Fig. S3 Total volatile fatty acid (VFA) concentrations and its compositional profiles in digesters operated at 4 (a) and 5 (b) g CODorg L-1 day-1 during phase II (in-situ biomethanisation of endogenously-produced CO2).
Fig. S4 Average distribution of archaeal communities in digesters operated at 4 and 5 g CODorg L-1 day-1 during phase II (in-situ biomethanisation of endogenously-produced CO2).
Fig. S5 Relative abundance of methanogenic archaea at genus level during phase II (in-situ biomethanisation of endogenous CO2) and phase III (simultaneous biomethanisation of endogenous and imported CO2) in digesters operated at 2 and 3 CODorg L-1 day-1.
Fig. S6 pH of digesters at (a) 4 and (b) 5 CODorg L-1 day-1 during phase I (conventional AD) and II (in-situ biomethanisation of endogenously-produced CO2).

And
Table 1 Summary of operational and performance parameters for digesters at steady state for the last 10 days of phase I (average of pair ± standard deviation).

Date of data collection: 20 December 2016 to 5 Feb 2018

Information about geographic location of data collection: University of Southampton, U.K.

Licence:
Attribution 4.0 International (CC BY 4.0)

Related projects:

Biomethanisation of CO2 in anaerobic digestion plants; Funded by EPSRC IB Catalyst Early Stage Translation 2 under the project number of EP/M028208/1.

Date that the file was created: April, 2019.