Research Article
Performance Analysis and Microbial Community Evolution of In Situ Biological Biogas Upgrading with Increasing H2/CO2 Ratio
Table 4
Summary of reactor alkalinity and VS removal during the experimental periods.
| | Period | Reactor | Alkalinity (gCaCO3∙L-1) | VS removal (%) |
| | I | R1 | 4.36 | 39% | | R2 | 4.33 | 37% | | II | R1 | 4.04 | 44% | | R2 | 4.07 | 42% | | III | R1 | 4.04 | 39% | | R2 | 4.01 | 40% | | IV | R1 | 3.96 | 45% | | R2 | 4.02 | 47% | | V | R1 | 3.99 | 41% | | R2 | 4.37 | 42% | | VI | R1 | 3.36 | 35% | | R2 | 4.06 | 32% | | VII | R1 | 3.48 | 39% | | R2 | 3.92 | 34% | | VIII | R1 | 2.16 | 37% | | R2 | 3.63 | 32% |
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