sewage sludge, anaerobic digestion (#2161)

ID-number#2161
Materialsewage sludge, anaerobic digestion
Descriptionfine particulate gray
Classification ECN Phyllis classification ▸ sludge ▸ sewage ▸ sewage sludge, anaerobic 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% 77.70
Ash content wt% 4.88 21.90

Ultimate Analysis

Carbon wt% 6.82 30.60 39.18 Measured
Hydrogen wt% 1.09 4.90 6.27 Measured
Nitrogen wt% 0.67 3.00 3.84 Measured
Sulphur wt% 0.22 1.00 1.28 Measured
Oxygen wt% 8.61 38.60 49.42 Calculated
Total (with halides) wt% 100.00 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 0.31 9.92 12.70
Gross calorific value (HHV) MJ/kg 2.45 10.99 14.07
HHVMilne MJ/kg 2.62 11.73 15.02 Calculated

Chemical Analyses

Major elements

Aluminium (Al) mg/kg (dry) 29 000.0 Measured
Potassium (K) mg/kg (dry) 2 300.0 Measured
Sodium (Na) mg/kg (dry) 1 500.0 Measured
Calcium (Ca) mg/kg (dry) 85 000.0 Measured
Magnesium (Mg) mg/kg (dry) 5 600.0 Measured
Iron (Fe) mg/kg (dry) 8 200.0 Measured

Minor elements

Chromium (Cr) mg/kg (dry) 4 600.0 Measured
Copper (Cu) mg/kg (dry) 2 900.0 Measured
Manganese (Mn) mg/kg (dry) 100.0 Measured
Nickel (Ni) mg/kg (dry) 500.0 Measured
Lead (Pb) mg/kg (dry) 1 700.0 Measured
Zinc (Zn) mg/kg (dry) 3 200.0 Measured
Barium (Ba) mg/kg (dry) 500.0 Measured

Other elements

Strontium (Sr) mg/kg (dry) 700.0 Measured
Boron (B) mg/kg (dry) 200.0 Measured