Skip to main content

Table 2 Operating conditions of control- and in situ upgrading reactors at different experimental phases

From: Impact of operational conditions on methane yield and microbial community composition during biological methanation in in situ and hybrid reactor systems

Parameters Unit Phases
I (day 1–64) II (day 65–78) III (day 79–85) IV (day 93–113) V (day 114–140) VI (day 141–172)
CR UR CR UR CR UR CR UR CR UR CR UR
Stirring speed rpm 80 80 80 80 140 140 80 80 80 80 80 80
CM:CW ratio % 10 10 10 10 10 10 20 20 10 10 10 10
Feeding frequency hours 24 24 24 24 24 24 24 24 48 48 24 24
H2:CO2 ratio 2 2 2 2 4
  1. Day 86–92—same conditions as phase II
  2. CR control reactor; UR in situ upgrading reactor; CM cow manure; CW cheese waste