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Table 5 Characterization of lawn cuttings, our own analysis in comparison with literature values

From: Biogas and nutrients from blackwater, lawn cuttings and grease trap residues—experiments for Hamburg’s Jenfelder Au district

Parameter

Unit

Own analysis

Literature

No. of samples

AWW

Green cuttings [13]

Lawn cuttings [38]

Grass silage [34]

Average ± SD

Min–max values

Min–max values

Average values

DM

%

19

30.59 ± 13.46

12

18–37

30.66

oDM

% DM

19

82.53 ± 7.54

83–92

77–88

92.46

COD

g/kg

4

275.8 ± 81.1

396.88

TOC

g/kg

4

80.3 ± 17.4

NH4 +/NH3-N

g/kg

6

1.98 ± 1.18

0.44

TN

% DM

6

3.1 ± 0.6

2–3

1.7

1.6a

TC

% DM

4

34.78 ± 6.73

34–45

43.04

pH

 

8

5.3 ± 1.15

4.3

  1. aTKN