sewage sludge (#1513)

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ID-number#1513
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: < 30; Ba: 419; Co: 94; Ni: 234; Hg: < 5; Se: < 30; V: 98; Zn: 2630
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% 5.30
Ash content wt% 44.13 46.60
Volatile matter wt% 48.39 51.10 95.69
Fixed carbon wt% 2.18 2.30 4.31 Calculated

Ultimate analysis (macroelements)
Carbon wt% 24.15 25.50 47.75 Measured
Hydrogen wt% 4.70 4.96 9.29 Measured
Oxygen wt% 17.52 18.50 34.64 Measured
Nitrogen wt% 3.08 3.25 6.09 Measured
Sulphur wt% 1.06 1.12 2.10 Measured
Total (with halides) wt% 99.96 99.95 99.91 Calculated

Halides
Chlorine (Cl) mg/kg 227.3 240.0 449.4 Measured

Heating value
Net calorific value (LHV) MJ/kg 10.16 10.87 20.36
Gross calorific value (HHV) MJ/kg 11.32 11.95 22.38
HHVMilne MJ/kg 11.68 12.34 23.11 Calculated

Ash melting behaviour

American standard method, measured in oxidizing conditions
HT (hemispherical temperature) °C 1 260

Ash Properties

Ash composition
SO3 wt% (ash) 2.60
P2O5 wt% (ash) 19.30
SiO2 wt% (ash) 22.40
Fe2O3 wt% (ash) 24.60
Al2O3 wt% (ash) 9.00
CaO wt% (ash) 12.50
MgO wt% (ash) 2.80
Na2O wt% (ash) 4.60
K2O wt% (ash) 0.84
TiO2 wt% (ash) 0.73
Pb mg/kg (ash) 60.0
Cd mg/kg (ash) 1.8
Cu mg/kg (ash) 1 200.0
Cr mg/kg (ash) 623.0