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Figure2. Cumulative biogas production
(1)
1)(.expmax)( maxmax
exp. tPeR
t PP
0
20
40
60
80
100
120
140
160
0 10 20 30 40 50
Time (days)
CumulativeLbiogas/KgST
R1 R2 GR1 GR2
System Rmax (ml d-1
ST-1) (d)
R1 0.98476 6.96
R2 1.0726 0.7975
Recirculation of liquid
fraction (leachate)
Biogas
composition
Biogas
production
Biogas
composition
Biogas
production
Monitoring of
liquid fraction
TS, VS
COD
N-NH3
pH
Alkalinity
VFAs
Monitoring of
liquid fraction
TS, VS
COD
N-NH3
pH
Alkalinity
VFAs
Solid fraction
(initial and final)
TS, VS
Solid fraction
(initial and final)
TS, VS
Solid fraction(Substrates
+straw)
Liquid fraction
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