SEM/EDS and XRD characterization of raw and washed MSWI fly ash sintered at different temperatures

Liu, Yangsheng; Zheng, Liting; Li, Xiaodong; Xie, Shaodong

doi:10.1016/j.jhazmat.2008.05.029

Cited by 102 publications

(44 citation statements)

References 15 publications

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“…As for a particular biomass, the ash agglomeration tendency was remarkably enhanced at relatively higher ashing temperatures because it was easier to reach low-melting point eutectics on the inert particle surface. The results reported in this study were qualitatively similar to those reported by Salour et al (1993) and Liu et al (2009) for a series of other biomass fuels. Neither biomass species, ashing temperature, nor elemental composition of ash particles had noticeable effects on the morphology and agglomeration properties.…”

Section: Sem-edx Analysis Of Biomass Ashsupporting

confidence: 90%

Comparative Analysis of the Physical and Chemical Properties of Different Biomass Ashes Produced from Various Combustion Conditions

Yao¹,

Xu²,

Liang³

2017

BioResources

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The ash yield, composition, mineral phases, and other physical and chemical properties of various biomass ashes are dependent on ashing temperature. To fully understand the impacts of biomass species and ashing temperature on the characterization of biomass ashes, three kinds of biomass fuels were treated at different ashing temperatures to produce biomass ashes. Their properties were analyzed by a series of qualitative and quantitative methods, including X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), thermal gravimetric, and differential thermal analyzer (TG-DTA). The experimental results indicated that as the ashing temperature was raised, the ash slagging tendency could be enhanced. The fused layer on the surface of ash particles was coated with potassium chloride, which was the key reason for the development of severe agglomeration and slagging. Due to the high carbon content and large number of pores in the lower temperature ashes, a low-cost adsorbent could be developed effectively from these carbon materials. The thermal decomposition of all ashes showed a stepwise mechanism. The total weight loss of the same biomass ash decreased with increased ashing temperature, which corresponded well with the phase transitions and thermal reaction sequences.

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Section: Sem-edx Analysis Of Biomass Ashsupporting

confidence: 90%

Comparative Analysis of the Physical and Chemical Properties of Different Biomass Ashes Produced from Various Combustion Conditions

Yao¹,

Xu²,

Liang³

2017

BioResources

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“…Figure 4 shows the X-Ray diffraction patterns of sample B AR and of samples GB AR after 3, 7 and 28 days of curing. Mineralogical composition of the fly ash is in good agreement with literature data [49]. Geopolymerized GB AR samples substantially contain the same crystalline phases as the B AR sample.…”

Section: Mswi-fa Chemical Characterization and Geopolymerizationsupporting

confidence: 87%

Recycling of Pre-Washed Municipal Solid Waste Incinerator Fly Ash in the Manufacturing of Low Temperature Setting Geopolymer Materials

Ferone¹,

Colangelo²,

Messina³

et al. 2017

Waste Management and Valorization

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Abstract:In this work, three samples of municipal solid waste incinerators fly ash (MSWI-FA) have been stabilized in systems containing coal fly ash to create geopolymers through a polycondensation reaction. Monolithic products have been obtained with both MSWI fly ash as received and after the partial removal of chloride and sulfate by water washing. The polycondensation products have been characterized qualitatively by means of Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy and quantitatively, through the determination of the volume of reacted water and silicate. Furthermore, the heavy metals and chloride releases together with the physico-mechanical properties have been evaluated on the hardened products. In conclusion, considering the technological and environmental performances of the obtained geopolymers, they could be suitable for many non-structural applications, such as backfilling of abandoned quarries, decorative materials or brick fireplaces, hearths, patios, etc.

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“…Because trace elements existing in fly ash can leach out and contaminate soil, as well as surface and groundwater, their study has become important for environmental protection [1]. Fly ashes from several countries were studied, including those from Spain, Italy, the Netherlands [5,6], Greece [7], Turkey [8], England [9][10][11], Russia [12], China [13], the United States [4,14,15] and Argentina [16].…”

Section: Introductionmentioning

confidence: 99%

Fly ash from a Mexican mineral coal I: Mineralogical and chemical characterization

Medina

Gamero

Querol

et al. 2010

Journal of Hazardous Materials

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SEM/EDS and XRD characterization of raw and washed MSWI fly ash sintered at different temperatures

Cited by 102 publications

References 15 publications

Comparative Analysis of the Physical and Chemical Properties of Different Biomass Ashes Produced from Various Combustion Conditions

Comparative Analysis of the Physical and Chemical Properties of Different Biomass Ashes Produced from Various Combustion Conditions

Recycling of Pre-Washed Municipal Solid Waste Incinerator Fly Ash in the Manufacturing of Low Temperature Setting Geopolymer Materials

Fly ash from a Mexican mineral coal I: Mineralogical and chemical characterization

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