sewage sludge (#1512)

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ID-number#1512
Materialsewage sludge
Classification ECN Phyllis classification ▸ sludge ▸ sewage ▸ sewage sludge
NTA 8003 classification ▸ [400] slib ▸ [410] zuiveringsslib RWZI
Submitter organisationECN (Netherlands)
Submission date1999-07-06
Remarkssewage sludge from Germany; ash analysis in mg/kg ash: Sb < 20; As: 62; Ba: 820; Co <20; Ni: 207; Hg < 5; Se: < 30; V: 270; Zn: 2290
LiteratureK. R. G. Hein: Combined combustion of biomass/sewage sludge and coals; Clean Coal Technology Programme 1992-1994, Stuttgart, IVD, ISBN 3-928123-16-5 (1994).

Values

Property Unit Value Std dev Det lim Lab Date Method Remarks
ar dry daf

Main biomass properties

Proximate analysis
Moisture content wt% 3.60
Ash content wt% 45.79 47.50
Volatile matter wt% 44.25 45.90 87.43
Fixed carbon wt% 6.36 6.60 12.57 Calculated

Ultimate analysis (macroelements)
Carbon wt% 23.52 24.40 46.48 Measured
Hydrogen wt% 4.15 4.30 8.19 Measured
Oxygen wt% 18.32 19.00 36.19 Measured
Nitrogen wt% 3.41 3.54 6.74 Measured
Sulphur wt% 0.91 0.94 1.79 Measured
Total (with halides) wt% 99.69 99.68 99.39 Calculated

Heating value
Net calorific value (LHV) MJ/kg 10.04 10.51 20.02
Gross calorific value (HHV) MJ/kg 11.04 11.45 21.81
HHVMilne MJ/kg 10.59 10.98 20.92 Calculated

Ash melting behaviour

American standard method, measured in oxidizing conditions
HT (hemispherical temperature) °C 1 180

Ash Properties

Ash composition
SO3 wt% (ash) 1.14
P2O5 wt% (ash) 15.40
SiO2 wt% (ash) 38.30
Fe2O3 wt% (ash) 12.50
Al2O3 wt% (ash) 14.80
CaO wt% (ash) 9.10
MgO wt% (ash) 2.80
Na2O wt% (ash) 2.21
K2O wt% (ash) 2.19
TiO2 wt% (ash) 0.80
Pb mg/kg (ash) 180.0
Cd mg/kg (ash) 5.3
Cu mg/kg (ash) 410.0
Mn mg/kg (ash) 140.0