Table 1 Initial physico-chemical and microbial properties of green waste, raw sludge provided from MWTT, ozonized, ultrasonic and combined ozonation/ultrasonics sludge.

pH

7.30 ± 0.05

7.59 ± 0.04

7.2 ± 0.1

7.5 ± 0.08

7.35 ± 0.03

TS^a

30.59 ± 0.10

2.59 ± 0.18

18.10 ± 1.2

17.92 ± 0.92

17.05 ± 0.35

VS/TS^a

79.11 ± 0.08

89.18 ± 0.15

67 ± 0.13

67.18 ± 0.05

77.97 ± 0.07

TOC^a

33.95 ± 0.12

39.55 ± 0.23

37.32 ± 0.15

37.35 ± 0.17

43.31 ± 0.14

TN^a

0.78 ± 0.02

1.5 ± 0.03

1.05 ± 0.03

1.8 ± 0.08

1.1 ± 0.10

C:N Ratio

43.52 ± 0.37

26.37 ± 0.06

35.44 ± 0.14

20.73 ± 0.05

39.37 ± 0.01

TP^a

8.5 ± 0.06

9.5 ± 0.10

2.8 ± 0.02

2.9 ± 0.03

2.5 ± 0.01

MC^a

69.41 ± 0.69

97.50 ± 050

81.90 ± 0.75

82.08 ± 0.78

83.03 ± 0.12

TC^b

400

1100

450

920

860

FC^b

50

805

150

750

520