sewage sludge, aerobic digestion (#2162)

ID-number#2162
Materialsewage sludge, aerobic digestion
Descriptionfine particulate dark gray
Classification ECN Phyllis classification ▸ sludge ▸ sewage ▸ sewage sludge, aerobic digestion
NTA 8003 classification ▸ [400] slib ▸ [410] zuiveringsslib RWZI
Submitter organisationECN (Netherlands)
Submission date2001-04-24
Remarkswater content from weight loss at 105°C; ash content calculated from content of remaining elements, assuming oxides; ash content may be underestimated as Si has not been determined
LiteratureFont,R.; Fullana,A.; Conesa,J.A.; Llavador,F.: Analysis of the pyrolysis and combustion of different sewage sludges by TG. J. Anal. Appl. Pyrolysis 58-59 (2001) 927-941.

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 83.60
Ash content wt% 2.98 18.20

Ultimate Analysis

Carbon wt% 5.51 33.60 41.08 Measured
Hydrogen wt% 0.84 5.10 6.23 Measured
Nitrogen wt% 0.89 5.40 6.60 Measured
Sulphur wt% (dry) 1.00
Oxygen wt% 6.02 36.70 44.87 Calculated
Total (with halides) wt% 99.84 99.00 98.78 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 0.02 12.60 15.40
Gross calorific value (HHV) MJ/kg 2.25 13.71 16.76
HHVMilne MJ/kg 2.12 12.92 15.79 Calculated

Chemical Analyses

Major elements

Aluminium (Al) mg/kg (dry) 15 000.0 Measured
Potassium (K) mg/kg (dry) 8 000.0 Measured
Sodium (Na) mg/kg (dry) 1 400.0 Measured
Calcium (Ca) mg/kg (dry) 58 000.0 Measured
Magnesium (Mg) mg/kg (dry) 8 000.0 Measured
Iron (Fe) mg/kg (dry) 21 000.0 Measured

Minor elements

Chromium (Cr) mg/kg (dry) 400.0 Measured
Copper (Cu) mg/kg (dry) 200.0 Measured
Manganese (Mn) mg/kg (dry) 100.0 Measured
Lead (Pb) mg/kg (dry) 100.0 Measured
Zinc (Zn) mg/kg (dry) 12 000.0 Measured
Barium (Ba) mg/kg (dry) 400.0 Measured

Other elements

Strontium (Sr) mg/kg (dry) 500.0 Measured
Boron (B) mg/kg (dry) 100.0 Measured