Characterization and comparison of gasification and incineration fly ashes generated from municipal solid waste in Singapore

Qin, Junde; Zhang, Yunhui; Heberlein, Stephan; Lisak, Grzegorz; Yi, Yaolin

doi:10.1016/j.wasman.2022.04.041

Cited by 13 publications

(3 citation statements)

References 33 publications

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“…Similarly, for the D90 value, the trend is consistent, with the cement having a value of 9.2 µm compared to the BA's 55. 8 The chemical composition of A1 (2 ≤ ϕ < 3.15 mm) and A7 (<0.063 mm) fractions, as well as the as-received residue and the cement, were determined by XRF, and the main results are shown in Figure 4. The chemical composition of all fractions is presented in Table S1 (Supplementary Material).…”

Section: Characterization Of the Raw Materialsmentioning

confidence: 99%

“…Several scientific developments have been made to replace clinker/cement with other materials, such as calcinated clay and residues/by-products from other industries, i.e., paper pulp wastes [3]. One residue/by-product that has gained interest in recent years is the ashes resulting from municipal solid waste incineration (MSWI) [4][5][6][7][8]. Worldwide, approximately 2 billion tons of municipal solid waste are generated annually, and at least 33% of it is not safely managed [9].…”

Section: Introductionmentioning

confidence: 99%

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Development of Eco-Mortars with the Incorporation of Municipal Solid Wastes Incineration Ash

Vilarinho,

Guimarães,

Labrincha

et al. 2023

Materials

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The cement sector is the second largest contributor to anthropogenic CO2 emissions, and several efforts have been made to reduce its environmental impact. One alternative that has gained interest in recent years involves the use of municipal solid waste incineration (MSWI) bottom ash (BA) as clinker/cement replacement. This paper studies the application of MSWI BA in three different ways: (i) aggregate (0 to 100 v/v %), (ii) partial binder substitute (0 to 30 v/v %), and (iii) filler (5 v/v %). It stands out for its approach in characterizing seven distinct BA particle sizes and for the development and analysis of eco-cement mortars with only mechanically pre-treated BA. Hardened state properties showed that the use of BA as aggregate leads to deterioration and efflorescence formation on the surface of the mortars, making this application unfeasible. The replacement of 15 v/v % of OPC (Ordinary Portland Cement) by BA and the use of finer (<63 μm) BA as filler caused a decrease in the compressive strength of the mortar, from 15.8 to 9.3 and 11.0, respectively. However, these materials are suitable for use in walls where the minimum required mechanical resistance is 5 MPa. Furthermore, these mortars demonstrated resilience against freeze–thaw cycles and even exhibited increased compressive strength after 25 cycles. Thus, this work showed that MSWI BA can be used as an OPC substitute (up to 15 v/v %) and as a filler, promoting circular economy principles and reducing CO2 emissions related to the construction industry.

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Section: Characterization Of the Raw Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Eco-Mortars with the Incorporation of Municipal Solid Wastes Incineration Ash

Vilarinho,

Guimarães,

Labrincha

et al. 2023

Materials

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“…In simplest description, incinerator is a container designed to burn waste. This is accomplished by reducing the waste to bottom ash by extremely high temperature combustion (Li et al, 2022;Qin et al, 2022). In order to contain the combustion heat, the furnace must be constructed with well-insulated strong materials (Nabavi-Pelesaraei et al, 2017).…”

Section: Literature Reviewmentioning

confidence: 99%

Fuel Consumption Investigation for Quran Disposal Incinerator System

Khairuddin,

Abd Rashid,

Ismail

2023

E-BPJ

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In this study, the fuel consumption characteristic of a Quran incineration system was conducted. The experiment examines the relation between fuel usage and Quran loads as well as how the usage of blower affects the fuel utilization. The result proved that the blower unit shortens the combustion time and uses less fuel. Nevertheless, the electrical source to power the blower will increase the operating costs, especially during full loading operation. Therefore, this study will provide insight in determining the balance between the combustion duration over the operational costing of such a system.

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Characterization and stabilization of incineration fly ash from a new multi-source hazardous waste co-disposal system: field-scale study on solidification and stabilization

Huang,

Wang,

Fan

et al. 2024

Environ Sci Pollut Res

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Characterization and comparison of gasification and incineration fly ashes generated from municipal solid waste in Singapore

Cited by 13 publications

References 33 publications

Development of Eco-Mortars with the Incorporation of Municipal Solid Wastes Incineration Ash

Development of Eco-Mortars with the Incorporation of Municipal Solid Wastes Incineration Ash

Fuel Consumption Investigation for Quran Disposal Incinerator System

Characterization and stabilization of incineration fly ash from a new multi-source hazardous waste co-disposal system: field-scale study on solidification and stabilization

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