Research Article
Performance Analysis and Microbial Community Evolution of In Situ Biological Biogas Upgrading with Increasing H2/CO2 Ratio
Table 3
Summary of reactors’ gas mass flow (CO2, CH4, and H2) during the experimental periods.
| Period–H2/CO2 | CO2 (NmL∙d-1) | CH4 (NmL∙d-1) | H2 (NmL∙d-1) | R1 | R2 | R1 | R2 | R1 | R2 |
| I | 788 | 894 | 2597 | 2772 | 0 | 0 | II-0.5 | 955 | 1054 | 2813 | 3137 | 27 | 33 | III–1 | 962 | 1034 | 2985 | 3319 | 42 | 28 | IV–2 | 953 | 1094 | 3161 | 3612 | 43 | 38 | V–3 | 1004 | 1307 | 3628 | 4404 | 54 | 65 | VI–4 | 605 | 1147 | 3454 | 4542 | 203 | 349 | VII–6 | 575 | 864 | 3597 | 4329 | 134 | 229 | VIII–7 | 297 | 440 | 3353 | 4970 | 235 | 348 |
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