Life cycle assessment for the production of MSWI fly-ash based porous glass-ceramics: Scenarios based on the contribution of silica sources, methane aided, and energy recoveries

Barracco, Francesco; Demichelis, Francesca; Sharifikolouei, Elham; Ferraris, Monica; Fino, Debora; Tommasi, Tonia

doi:10.1016/j.wasman.2022.12.013

Cited by 16 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the characteristics of high compressive strength and high temperature resistance, ceramsite is often used as roadbed materials. The assessment in this study was conducted by ISO standards and previous life cycle assessment studies. ,− …”

Section: Methodology and Datamentioning

confidence: 99%

Technology Innovation in Incinerator Fly Ash Sintering and Melting Brings Regional GHG Mitigation and Economic Benefits

Zhao,

Liu,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Municipal solid waste incinerator fly ash (IFA) reutilization is energy-intensive with expenditure and secondary fly ash (Sec-FA) generation. Technology innovation and deployment are necessary for better IFA reutilization. Herein, potential benefits of technology innovation by fuel substitution, waste heat recovery and Sec-FA reuse of preferable plasma melting, fuel melting, and sintering technologies were evaluated by life cycle assessment (LCA) and life cycle costing (LCC). Results show that fuel melting and sintering could gain more environmental and economic benefits, respectively Technology innovation could bring environmental benefits and approximately 132 to 173 RMB/t IFA of economic profitability, among which waste heat recovery could gain 32–36% of economic optimization effect. A regional technology transition in China from plasma melting to fuel melting and technology innovation with waste heat and Sec-FA recovery shows GHG mitigation (0.48–0.79 Mt/yr) and economic benefits (322.21–537.02 million RMB/yr). Policy scenarios indicated that enterprise will lose approximately 360.70 RMB/t IFA if zero-subsidy is provided.

show abstract

Section: Methodology and Datamentioning

confidence: 99%

Technology Innovation in Incinerator Fly Ash Sintering and Melting Brings Regional GHG Mitigation and Economic Benefits

Zhao,

Liu,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Industrial development generates large amounts of toxic and hazardous wastes which are frequently landfilled (e.g., [1]). This practice raises concerns about the possibility of leaching materials into aquifers, reduced landfill capacity and high environmental and economic costs associated with landfill disposal [2].…”

Section: Introductionmentioning

confidence: 99%

Bulk Composition Effects on Vitrification of Mixed Fine Construction–Demolition and Inorganic Solid Waste

Stabile,

Abudurahman,

Carroll

et al. 2023

Minerals

View full text Add to dashboard Cite

Re-use of neglected and frequently landfilled wastes, including earthquake-generated rubble, can reduce the environmental impact of such waste materials, avoiding georesource exploitation, and potentially provide a source for new upcycling applications. Here, the fine fraction (<0.125 mm) of different wastes was selected according to chemical composition (mostly silicate/oxide-rich materials), including construction and demolition waste (CDW), commercial glass, ceramic industry waste and incinerator bottom and fly ashes. Mixtures of these materials were used for vitrification experiments conducted at atmospheric pressure, 1200 °C, 8 h duration, preparing ten mixes containing 30 to 70 wt% of different waste materials added to a CDW starting material. X-ray powder diffraction and SEM/electron microprobe analyses show that the amorphous content (glass) varies from a maximum of 100 wt.% in products made of CDW with 70 wt.% added ceramic materials (e.g., roof tile) to a minimum of ~53 wt.% amorphous material when CDW was mixed with 30 wt.% brick powder. Mixtures of other waste materials (commercial glass, bottom/fly ash, ceramic waste) produced variable amounts of amorphous component, interpreted in terms of thermal minima in the CaO-Al2O3-SiO2 system. Lack crystallinity and characteristic microstructures of experimental products suggest that vitrification is a promising choice for rendering inert chemically complex waste materials like CDW for possible upcycling applications.

show abstract

“…Technical regulations do not allow the use of vitrified FA from MSW or thermal power plants to manufacture conventional glass products, such as hollow glass or flat glass, due to the significant presence of impurities (e.g., iron oxides), but also because of the indirect social rejection that can take place. Therefore, the solution would be to use it as an SRM in the sector of cementitious material manufacturing and in the ceramic sector for flooring and coatings in frits for glazing, thanks to the high versatility of the products and compositions in which it could be used [12,13].…”

Section: Introductionmentioning

confidence: 99%

The Emission of Volatile Components during Laboratory Vitrification When Using Fly Ash and Other Waste to Obtain Ceramic Coatings

Almendro-Candel,

Callejas,

Montealegre

et al. 2023

Coatings

View full text Add to dashboard Cite

For decades, a significant amount of research has been conducted on the vitrification of mixtures of all kinds of industrial wastes, especially fly ash, both from thermal power plants and municipal waste incinerators. Although the possibility of creating glass from all types of fly ash has been proven through such research, these studies barely focused on the emission of volatile components that takes place during vitrification processes at high temperatures. This is why, after identifying the types of volatilisation that can occur, we characterised the gasses that are emitted during the vitrification of some types of fly ash and other waste in a laboratory furnace. In order to do so, we analysed the Cl2 and SO2 gasses emitted using the DTA/TG/FTIR techniques, as well as the losses of H2O and CO2. The authors also measured the volatilizations directly from the mouth of the furnace using gas chromatography syringes and analysed the possible emission of dioxins. This study is the first analysis of volatile elements of this kind, after numerous vitrifications in recent decades which ignored the volatilisations that occur when using fly ashes. Although the various types of fly ash used generate emissions of Cl2 and SO2, their use as a by-product on an industrial level could be recommended if previous thermal and washing treatments are conducted. These would minimise the above emissions, enabling the use of said fly ash in the production of glasses for commercial frits, even if an efficient industrial-scale gas cleaning system would apply. Furthermore, an appropriate optimised design of its formulation would make it possible to structurally link some of these gaseous components to the glass structure. These types of results will make it possible to calculate the volatilization when vitrifying certain types of industrial waste on an industrial level, although these studies would require prior assessment in a pilot plant.

show abstract

Life cycle assessment for the production of MSWI fly-ash based porous glass-ceramics: Scenarios based on the contribution of silica sources, methane aided, and energy recoveries

Cited by 16 publications

References 32 publications

Technology Innovation in Incinerator Fly Ash Sintering and Melting Brings Regional GHG Mitigation and Economic Benefits

Technology Innovation in Incinerator Fly Ash Sintering and Melting Brings Regional GHG Mitigation and Economic Benefits

Bulk Composition Effects on Vitrification of Mixed Fine Construction–Demolition and Inorganic Solid Waste

The Emission of Volatile Components during Laboratory Vitrification When Using Fly Ash and Other Waste to Obtain Ceramic Coatings

Contact Info

Product

Resources

About