Table 5 Properties of water extractable fraction (WEF) from the B-BM and B-MM derived from lab-scale pyrolysis

pH range

10.55 to 10.68

9.36 to 9.37

10.22 to 10.25

10.32 to 10.40

10.46 to 10.47

10.10 to 10.13

9.94 to 9.98

7.75 to 8.65

10.07 to 10.15

6.46 to 6.75

EC

dS m⁻¹

2.74 ± 0.04

1.82 ± 0.07

1.87 ± 0.02

2.08 ± 0.07

2.19 ± 0.03

2.34 ± 0.04

3.8 ± 0.04

0.69 ± 0.07

3.97 ± 0.1

0.47 ± 0.05

Mean SUVA₂₅₄

L mg⁻¹ m⁻¹

2.20

1.23

2.13

5.02

1.69

1.06

1.07

0.20

1.03

0.05

DOC

mg L⁻¹

5.13 ± 1.76

6.08 ± 2.09

4.91 ± 2.86

5.62 ± 1.78

9.31 ± 2.75

9.73 ± 0.26

8.87 ± 2.03

21.87 ± 5.38

59.63 ± 14.39

19.43 ± 1.94

Cl⁻

64.36 ± 2.61

104.77 ± 46.14

60.93 ± 18.97

98.1 ± 40.49

167.93 ± 35.34

129.14 ± 7.51

149.98 ± 33.21

64.93 ± 5.18

288.18 ± 1.61

11.22 ± 0.82

SO₄²⁻

207.47 ± 44.04

193.35 ± 46.7

624.9 ± 98.41

366.83 ± 116.28

299.58 ± 66.12

820.75 ± 282.42

356.16 ± 79.89

201.3 ± 40.36

46.47 ± 0.78

224.95 ± 9.9

SO₄²⁻-S

69.25 ± 14.7

64.53 ± 15.59

208.57 ± 32.85

122.44 ± 38.81

99.99 ± 22.07

273.94 ± 94.26

118.87 ± 26.66

67.19 ± 13.47

15.51 ± 0.26

75.08 ± 3.3

Na⁺

345.38 ± 85.5

228.34 ± 57.23

618.68 ± 106.14

466.69 ± 123.53

335.66 ± 50

223.69 ± 0.64

132.09 ± 129.48

334.79 ± 26.49

272.59 ± 26.27

283.87 ± 67.14

K⁺

620.28 ± 166.61

326.77 ± 88.83

1052.57 ± 180.26

617.71 ± 187.68

583.53 ± 133.57

2332.94 ± 1055.29

1695.23 ± 304

116.86 ± 10.21

1504.72 ± 7.09

13.76 ± 3.2

Mg²⁺

0.43 ± 0.01

2.45 ± 1.02

0.48 ± 0.05

0.76 ± 0.12

1.5 ± 0.26

4.51 ± 0.38

4.73 ± 1.44

0 ± 0

0 ± 0

0 ± 0

Ca²⁺

4.06 ± 0.11

16.62 ± 5.22

9.16 ± 0.53

6.26 ± 0.08

14.37 ± 0.61

26.12 ± 0.38

21.73 ± 7.23

0 ± 0

0 ± 0

84.76 ± 6.12

PO₄³⁻

0 ± 0

0 ± 0

1.75 ± 2.47

4.55 ± 0.48

0 ± 0

0 ± 0

10.46 ± 2.19

0 ± 0

0 ± 0

0 ± 0

PO₄³⁻-P

0 ± 0

0 ± 0

0.57 ± 0.81

1.48 ± 0.16

0 ± 0

0 ± 0

3.41 ± 0.72

0 ± 0

0 ± 0

0 ± 0