Time (days)

Biogas (mL/gVS)

Biomethane (mL/gVS)

Biogas (mL/gVS)

Biomethane (mL/gVS)

0

0

0

0

0

4

22 ± 4

12 ± 2

11 ± 4

6 ± 2

7

78 ± 6

44 ± 3

44 ± 4

25 ± 2

10

167 ± 9

93 ± 5

83 ± 6

47 ± 3

14

257 ± 17

144 ± 10

141 ± 13

79 ± 7

17

326 ± 22

182 ± 13

191 ± 15

107 ± 8

20

385 ± 31

215 ± 18

213 ± 26

119 ± 15

24

405 ± 26

227 ± 15

268 ± 22

150 ± 12

27

420 ± 28

235 ± 16

292 ± 22

164 ± 12

30

433 ± 26

242 ± 15

313 ± 20

175 ± 11

34

440 ± 33

247 ± 19

335 ± 24

188 ± 13

37

453 ± 31

254 ± 18

357 ± 22

200 ± 12

40

459 ± 30

257 ± 17

372 ± 22

208 ± 12