Paper Mill Fly Ash (PMFA)

Basic Information

SREWay code216
Name

Paper Mill Fly Ash (PMFA)

Is PublicYes
Uploaded by(not set)
Critically AssessedNo
Resource CategoryWASTES FROM PETROLEUM REFINING, NATURAL GAS PURIFICATION AND PYROLYTIC TREATMENT OF COAL / wastes from the pyrolytic treatment of coal / Not available / Not listed (EEA code: 05.06.999)
Category TypeAsh
Background informationHigh-calcium fly ash produced from the co-incineration of paper mill sludge and paper rejects in a bubbling fluidized bed boiler. The ash is self-hardened and rich in reactive CaO, making it suitable for direct mineral carbonation and CO₂ sequestration.
LocationFinland
Location Longitude(not set)
Location Latitude(not set)
Source
CommentsHigh free lime content enhances carbonation Self-hardening behavior without cement Porosity engineered via foaming to maximize CO₂ uptake

Chemistry

CaO - 55.5 wt%
CaO - 16.1 wt%
SiO2 - 13.9 wt%
Al2O3 - 8.2 wt%
MgO - 1.7 wt%
SO3 - 1.6 wt%
P2O5 - 0.6 wt%
Na2O - 0.4 wt%
Fe2O3 - 0.2 wt%
K2O - 0.2 wt%
Others: 1.6 wt%

Density

Bulk density: 1.05 g/cm3

Measurements

References

Ezu, A., Moukannaa, S., Kriskova, L., Illikainen, M., & Kilpimaa, K. (2024). Direct carbonation of porous materials produced from self-hardened paper mill fly ash. Case Studies in Construction Materials, 20, e03243. https://doi.org/10.1016/j.cscm.2024.e03243