Interferences of carbonate quantification in municipal solid waste incinerator bottom ash: evaluation of different methods

被引：0
作者：
Ena Smidt
Katharina Meissl
Johannes Tintner
Franz Ottner
机构：
[1] University of Natural Resources and Applied Life Sciences Vienna,Department of Water, Atmosphere and Environment, Institute of Waste Management
[2] University of Natural Resources and Applied Life Sciences Vienna,Department of Civil Engineering and Natural Hazards, Institute of Applied Geology
来源：
Environmental Chemistry Letters | 2010年 / 8卷
关键词：
Municipal solid waste incinerator (MSWI) bottom ash; Carbonate quantification; FT-IR spectroscopy; Thermal analysis; Gas volumetric method; Discriminant analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：217 / 222
页数：5
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