sewage sludge, aerobic digestion (#2164)

ID-number#2164
Materialsewage sludge, aerobic digestion
Descriptionfine particulate 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% 80.40
Ash content wt% 4.51 23.00

Ultimate Analysis

Carbon wt% 6.59 33.60 43.64 Measured
Hydrogen wt% 1.02 5.20 6.75 Measured
Nitrogen wt% 0.82 4.20 5.45 Measured
Sulphur wt% (dry) 1.00
Oxygen wt% 6.47 33.00 42.86 Calculated
Total (with halides) wt% 99.80 99.00 98.70 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 0.72 13.69 17.78
Gross calorific value (HHV) MJ/kg 2.91 14.82 19.25
HHVMilne MJ/kg 2.67 13.60 17.66 Calculated

Chemical Analyses

Major elements

Aluminium (Al) mg/kg (dry) 13 000.0 Measured
Potassium (K) mg/kg (dry) 3 100.0 Measured
Sodium (Na) mg/kg (dry) 1 600.0 Measured
Calcium (Ca) mg/kg (dry) 79 000.0 Measured
Magnesium (Mg) mg/kg (dry) 3 900.0 Measured
Iron (Fe) mg/kg (dry) 47 000.0 Measured

Minor elements

Chromium (Cr) mg/kg (dry) 600.0 Measured
Copper (Cu) mg/kg (dry) 2 800.0 Measured
Manganese (Mn) mg/kg (dry) 200.0 Measured
Nickel (Ni) mg/kg (dry) 400.0 Measured
Zinc (Zn) mg/kg (dry) 7 100.0 Measured
Barium (Ba) mg/kg (dry) 300.0 Measured

Other elements

Strontium (Sr) mg/kg (dry) 700.0 Measured
Boron (B) mg/kg (dry) 100.0 Measured