sewage sludge (#1178)

ID-number#1178
Materialsewage sludge
Classification ECN Phyllis classification ▸ sludge ▸ sewage ▸ sewage sludge
NTA 8003 classification ▸ [400] slib ▸ [410] zuiveringsslib RWZI
Ash typeISO 1171 mod to 550 degC, also for ash analysis
Submitter organisationECN (Netherlands)
Submission date1998-03-30
RemarksDenmark, Egaa
LiteratureECN laboratories.

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 81.60
Ash content wt% 6.70 36.40
Volatile matter wt% 9.60 52.20 82.08
Fixed carbon wt% 2.10 11.40 17.92 Calculated

Ultimate Analysis

Carbon wt% 6.20 33.70 52.98 Measured
Hydrogen wt% 0.96 5.22 8.20 Measured
Nitrogen wt% 0.99 5.38 8.46 Measured
Sulphur wt% 0.13 0.71 1.11 Measured
Oxygen wt% 3.40 18.46 29.03 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 0.62 14.19 22.31
Gross calorific value (HHV) MJ/kg 2.82 15.33 24.10
HHVMilne MJ/kg 2.80 15.22 23.93 Calculated

Chemical Analyses

Halides

Chlorine (Cl) mg/kg 260.0 1 413.0 2 221.8 Measured

Major elements

Potassium (K) mg/kg (dry) 6 000.0 Measured
Sodium (Na) mg/kg (dry) 1 030.0 Measured

Minor elements

Cadmium (Cd) mg/kg (dry) 2.6 Measured
Cobalt (Co) mg/kg (dry) 10.0
Chromium (Cr) mg/kg (dry) 20.0 Measured
Copper (Cu) mg/kg (dry) 370.0 Measured
Nickel (Ni) mg/kg (dry) 19.0 Measured
Lead (Pb) mg/kg (dry) 35.0 Measured
Zinc (Zn) mg/kg (dry) 400.0 Measured
Mercury (Hg) mg/kg (dry) 1.6 Measured

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 1 120
HT (hemispherical temperature) °C 1 220
FT (fluid temperature) °C 1 300

Ash Properties

Ash composition

CO2 wt% (ash) 0.28
SO3 wt% (ash) 0.68
P2O5 wt% (ash) 23.00
SiO2 wt% (ash) 28.00
Fe2O3 wt% (ash) 17.00
Al2O3 wt% (ash) 7.40
CaO wt% (ash) 14.00
MgO wt% (ash) 2.70
Na2O wt% (ash) 0.88
K2O wt% (ash) 3.40