A new approach for the vitrification of municipal solid waste incinerator bottom ash by microwave irradiation

Flesoura, Georgia; Dilissen, Nicole; Dimitrakis, Georgios; Zhang, Fei; Pontikes, Yiannis

doi:10.1016/j.jclepro.2020.124787

Cited by 17 publications

(8 citation statements)

References 22 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to their interesting physical and mechanical properties, the possibility to use industrial residues in the development of geopolymers is advantageous for both a circular economy and the environment, preserving the limited natural resources used in building industry and tackling landfilling with sometimes hazardous waste [ 9 , 10 , 11 , 12 , 13 , 14 ]. However, one of the drawbacks associated with the development of AAM is the use of alkaline solutions in the synthesis process, i.e., one cannot simply add water to a powder.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sodium Disilicate and Metasilicate on the Microstructure and Mechanical Properties of One-Part Alkali-Activated Copper Slag/Ground Granulated Blast Furnace Slag

et al. 2021

Self Cite

View full text Add to dashboard Cite

Copper slag (CS) remains a challenging industrial by-product with a relatively small utilization fraction. The present study investigated the development of one-part alkali-activated cements based on CS, ground granulated blast furnace slag (GGBS) and a mixture of the two as a precursor. We investigated 5 to 15 wt% solid sodium metasilicate (Na2SiO3) and disilicate (Na2Si2O5) as alkaline reagents. Isothermal calorimetry showed that the reactivity of the system was higher for the metasilicate based samples, with early reaction and higher cumulative heat released. Metasilicate based samples also presented a more densified microstructure, lower porosity and higher strength. Better performances were observed with 10 wt% metasilicate/disilicate with respect to the 5 and 15 wt%. The 28-day compressive strength and elastic modulus of 10 wt% metasilicate samples reached 75 MPa and 25 GPa, respectively, and, for paste samples, ranged from 100 wt% GGBS to 50/50 wt% CS/GGBS. The microstructure and calorimetry of the pastes showed that GGBS actively participated in the binding process, whereas CS played a smaller role and acted as a filler and catalyst. The substitution of commercial GGBS by CS up to 50 wt% did not affect the overall performance, thus, bringing CS forward as an economically interesting precursor.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Sodium Disilicate and Metasilicate on the Microstructure and Mechanical Properties of One-Part Alkali-Activated Copper Slag/Ground Granulated Blast Furnace Slag

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a next step, flash microwave vitrification was realized at 2.45 GHz within 1.5 min. The advantage of this technology for vitrification is that the cooling rate is naturally so fast, due to the inherent cold environment, that no specific efforts are required for quenching [114].…”

Section: Melting and Vitrificationmentioning

confidence: 99%

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

2021

View full text Add to dashboard Cite

The “European Union Training Network for Resource Recovery Through Enhanced Landfill Mining (NEW-MINE)” was a European research project conducted between 2016 and 2020 to investigate the exploration of and resource recovery from landfills as well as the processing of the excavated waste and the valorization of the obtained waste fractions using thermochemical processes. This project yielded more than 40 publications ranging from geophysics via mechanical process engineering to ceramics, which have not yet been discussed coherently in a review publication. This article summarizes and links the NEW-MINE publications and discusses their practical applicability in waste management systems. Within the NEW-MINE project in a first step concentrates of specific materials (e.g., metals, combustibles, inert materials) were produced which might be used as secondary raw materials. In a second step, recycled products (e.g., inorganic polymers, functional glass-ceramics) were produced from these concentrates at the lab scale. However, even if secondary raw materials or recycled products could be produced at a large scale, it remains unclear if they can compete with primary raw materials or products from primary raw materials. Given the ambitions of transition towards a more circular economy, economic incentives are required to make secondary raw materials or recycled products from enhanced landfill mining (ELFM) competitive in the market.

show abstract

“…The microwave (MW) irradiation technique has been widely applied in intensifying the chemical activities of materials. 51 − 53 MW can change the mineral microstructures and accelerate the dispersion of chemical reagents in the pores and fissures by intensely activating the vibrations of polar molecules in a very short time. 54 MW irradiation has achieved remarkable results for the fabrication and synthesis of different functionalized materials.…”

Section: Introductionmentioning

confidence: 99%

“…Some appropriate pretreatments and enhancements should be explored to avoid the dependence on higher acid concentrations. The microwave (MW) irradiation technique has been widely applied in intensifying the chemical activities of materials. − MW can change the mineral microstructures and accelerate the dispersion of chemical reagents in the pores and fissures by intensely activating the vibrations of polar molecules in a very short time . MW irradiation has achieved remarkable results for the fabrication and synthesis of different functionalized materials. , However, the comprehensive employment of MW in mining engineering has been rarely studied, especially for the hydrometallurgical engineering of refractory mineral ores.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Uranium Recycling from Tailings Caused by the Microwave Irradiation-Induced Composite Oxidation of the Fe–Mn Binary System

Wang

Huang

et al. 2022

ACS Omega

View full text Add to dashboard Cite

A new approach for the vitrification of municipal solid waste incinerator bottom ash by microwave irradiation

Cited by 17 publications

References 22 publications

Effect of Sodium Disilicate and Metasilicate on the Microstructure and Mechanical Properties of One-Part Alkali-Activated Copper Slag/Ground Granulated Blast Furnace Slag

Effect of Sodium Disilicate and Metasilicate on the Microstructure and Mechanical Properties of One-Part Alkali-Activated Copper Slag/Ground Granulated Blast Furnace Slag

The EU Training Network for Resource Recovery through Enhanced Landfill Mining—A Review

Enhancement of Uranium Recycling from Tailings Caused by the Microwave Irradiation-Induced Composite Oxidation of the Fe–Mn Binary System

Contact Info

Product

Resources

About