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Research Article

Performance Analysis and Microbial Community Evolution of In Situ Biological Biogas Upgrading with Increasing H2/CO2 Ratio

Table 2

Chemical characterization () of inoculum and sludge mixture used.

ParametersSludge mixtureInoculum

Total solids (TS) (gTS∙kgFM-1)(a)
Volatile solids (VS) (gVS∙kgFM-1)
VS/TS (%)70
CODtot (gCOD∙kgFM-1)125.5
TVFA (mgCOD∙L-1)224
Alkalinity (mgCaCO3∙L-1)

(a)FM: fresh matter.