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Table 3 Germination, pH, BA, and VFAs test results

From: Physicochemical, microbiological characterization and phytotoxicity of digestates produced on single-stage and two-stage anaerobic digestion of food waste

D

Do (%)

RSG (%)

RRE (%)

GI (%)

pH

BA (mg L− 1)

VFAs (mg L− 1)

D1

100

0

0

0

8.07–8.08

1053 ± 43

8581 ± 2627

50

0

0

0

8.03–8.07

543 ± 2

4479 ± 185

25

33 ± 30

3 ± 3

1 ± 1

8.07–8.17

305 ± 39

2501 ± 37

5

70 ± 17

100 ± 2

70 ± 16

8.19–8.21

61 ± 1

640 ± 9

D2

100

0

0

0

4.68–4.70

0

8200 ± 781

50

0

0

0

4.74–4.76

0

6609 ± 126

25

14 ± 4

31 ± 8

4 ± 1

4.75–4.77

0

4310 ± 30

5

97 ± 6

100 ± 2

73 ± 2

5.04–5.06

0

1175 ± 140

D3

100

0

0

0

9.30–9.32

1649 ± 23

3626 ± 137

50

0

0

0

9.14–9.16

788 ± 3

1734 ± 5

25

28 ± 25

6 ± 6

2 ± 2

9.11–9.13

445 ± 5

921 ± 37

5

95 ± 3

207 ± 19

195 ± 36

8.56–8.60

92 ± 3

127 ± 0

  1. D Digestate, Do Dose, D1 Single-stage AD digestate, D2 Acidogenic phase digestate, D3 Methanogenic phase digestate