sewage sludge, anaerobic digestion (#2160)

ID-number#2160
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% 72.80
Ash content wt% 7.18 26.40

Ultimate Analysis

Carbon wt% 7.94 29.20 39.67 Measured
Hydrogen wt% 1.28 4.70 6.39 Measured
Nitrogen wt% 0.79 2.90 3.94 Measured
Sulphur wt% (dry) 1.00
Oxygen wt% 9.74 35.80 48.64 Calculated
Total (with halides) wt% 99.73 99.00 98.64 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 1.34 11.47 15.58
Gross calorific value (HHV) MJ/kg 3.40 12.50 16.98
HHVMilne MJ/kg 3.05 11.23 15.26 Calculated

Chemical Analyses

Major elements

Aluminium (Al) mg/kg (dry) 34 000.0 Measured
Potassium (K) mg/kg (dry) 1 700.0 Measured
Sodium (Na) mg/kg (dry) 1 200.0 Measured
Calcium (Ca) mg/kg (dry) 110 000.0 Measured
Magnesium (Mg) mg/kg (dry) 5 600.0 Measured
Iron (Fe) mg/kg (dry) 7 700.0 Measured

Minor elements

Chromium (Cr) mg/kg (dry) 4 700.0 Measured
Copper (Cu) mg/kg (dry) 2 200.0 Measured
Manganese (Mn) mg/kg (dry) 100.0 Measured
Nickel (Ni) mg/kg (dry) 1 900.0 Measured
Lead (Pb) mg/kg (dry) 100.0 Measured
Zinc (Zn) mg/kg (dry) 6 800.0 Measured
Barium (Ba) mg/kg (dry) 500.0 Measured

Other elements

Strontium (Sr) mg/kg (dry) 900.0 Measured