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Selected Publication:

Smidt, E; Meissl, K; Tintner, J; Ottner, F.
(2010): Interferences of carbonate quantification in municipal solid waste incinerator bottom ash: evaluation of different methods
ENVIRON CHEM LETT. 2010; 8(3): 217-222. FullText FullText_BOKU

Quantification of carbonate contents in fresh and weathered municipal solid waste incinerator (MSWI) bottom ash was performed using volumetric and gravimetric methods, Fourier Transform Infrared (FT-IR) spectroscopy and thermal analysis. Results differ considerably depending on the method applied. Volumetric measurement and thermogravimetry (TG) are based on the determination of CO2 release by acid or thermal treatment, respectively. Interactions of CO2 with the mineral matrix and de novo synthesis of carbonates during thermal analysis were observed. In order to find out the contribution of CO2 released from residual organic matter, an additional experiment was carried out to demonstrate how the material is affected by the heating process in the course of thermal analysis. FT-IR spectroscopy as a non-destructive method seems to provide the most reliable quantitative results.
Authors BOKU Wien:
Böhm Katharina
Ottner Franz
Smidt Ena
Tintner-Olifiers Johannes

Find related publications in this database (Keywords)
Municipal solid waste incinerator (MSWI) bottom ash
Carbonate quantification
FT-IR spectroscopy
Thermal analysis
Gas volumetric method
Discriminant analysis

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