Table 2.

Chemical and physical parameters of sewage sludge.

Parameter	average value±SD
humidity [%]	91.3 ± 4.82
pH in H2O	7.15 – 7.17
C total [g kg−1 d.m.]	690.4 ± 23. 41
N Kjeldhal [mg kg−1 d.m.]	14560.00 ± 123.71
P total [mg kg−1 d.m.]	3479.73 ± 35.11
P available [mg kg−1 d.m.]	2461.35 ± 47.69
Zn [mg kg −1 d.m.]	288.90 ±2.8
Cd [mg kg −1 d.m.]	1.70 ± 0.31
Pb [mg kg −1 d.m.]	149.00 ± 5.9