Hydrothermal solidification behavior of municipal solid waste incineration bottom ash without any additives

Jing, Zhenzi; Fan, Xinwei; Zhou, Lei; Fan, Junjie; Zhang, Yi; Pan, Xiaohui; Ishida, Emile H.

doi:10.1016/j.wasman.2013.01.038

Cited by 47 publications

(14 citation statements)

References 23 publications

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“…The same researchers investigated the result of hydrothermal solidification of MSWI bottom ash mixed with quartz, slaked lime and water cooled blast furnace slag [ 98 ]. The hydrothermal solidification of MSWI bottom ash without any additives was studied, since it had an optimum Ca/Si ratio inherently [ 99 ]. Furthermore, they studied the effect of hydrothermal treatment in solvent with a mixture of ferric and ferrous sulfate on dioxin decomposition [ 100 ].…”

Section: Bottom Ash Pre-treatment Techniquesmentioning

confidence: 99%

The Use of Municipal Solid Waste Incineration Ash in Various Building Materials: A Belgian Point of View

Snellings²,

et al. 2018

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Huge amounts of waste are being generated, and even though the incineration process reduces the mass and volume of waste to a large extent, massive amounts of residues still remain. On average, out of 1.3 billion tons of municipal solid wastes generated per year, around 130 and 2.1 million tons are incinerated in the world and in Belgium, respectively. Around 400 kT of bottom ash residues are generated in Flanders, out of which only 102 kT are utilized here, and the rest is exported or landfilled due to non-conformity to environmental regulations. Landfilling makes the valuable resources in the residues unavailable and results in more primary raw materials being used, increasing mining and related hazards. Identifying and employing the right pre-treatment technique for the highest value application is the key to attaining a circular economy. We reviewed the present pre-treatment and utilization scenarios in Belgium, and the advancements in research around the world for realization of maximum utilization are reported in this paper. Uses of the material in the cement industry as a binder and cement raw meal replacement are identified as possible effective utilization options for large quantities of bottom ash. Pre-treatment techniques that could facilitate this use are also discussed. With all the research evidence available, there is now a need for combined efforts from incineration and the cement industry for technical and economic optimization of the process flow.

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Section: Bottom Ash Pre-treatment Techniquesmentioning

confidence: 99%

The Use of Municipal Solid Waste Incineration Ash in Various Building Materials: A Belgian Point of View

Snellings²,

et al. 2018

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“…Landfill, being the most widely used solid waste disposal option, is confronting numerous challenges attributed to land restriction, contaminations and legislations worldwide. How to dispose of millions of tons of MSW is becoming the biggest issue for environmental managers [2,3]; alternatively, municipal solid waste disposal is expected to make developments in improved landfill bioreactors, composting and thermal processes. Amongst these, incineration is widely accepted because of its small land footprint, huge mass and volume reduction, and, additionally, energy can be recovered in the form of heat and electricity [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Incineration Fly Ash and Its Treatment to Possible Utilization: A Review

2020

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Incineration has gained popularity over landfill as a key solution for the reduction of massively increasing volumes of municipal solid waste (MSW) generation worldwide and in particular China. However, it is not the end solution. The disposal of the incineration residues, which are enriched with a wide range of heavy metals and soluble salts, has become a challenge for the environmental managers. The aim of this study was to review the increasing urbanization and its repercussion on waste generation in China; waste management options were compared for possible environmentally friendly considerations. Treatment techniques of incineration fly ash were discussed to determine the effectiveness of obtaining environmentally stable material, and, finally, possible applications of incineration fly ash for utilization were discussed based on identifying the processing suitability, performance and environmental impact of incineration fly ash for its applications.

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“…A total of 260 million tons of MSWs were generated in 2013 in China [2], and this amount increases at an annual rate of about 8% to 10%. How to dispose these MSWs has become one of major concerns to environmental managers [3]. At present the main method of MSW disposal is still landfill burying, even though it can cause groundwater pollution [4].…”

Section: Introductionmentioning

confidence: 99%

A comparative study on the heavy metal solidification/stabilization performance of four chemical solidifying agents in municipal solid waste incineration fly ash

Wang

Zhang

Chen

et al. 2015

Journal of Hazardous Materials

205

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Hydrothermal solidification behavior of municipal solid waste incineration bottom ash without any additives

Cited by 47 publications

References 23 publications

The Use of Municipal Solid Waste Incineration Ash in Various Building Materials: A Belgian Point of View

The Use of Municipal Solid Waste Incineration Ash in Various Building Materials: A Belgian Point of View

Incineration Fly Ash and Its Treatment to Possible Utilization: A Review

A comparative study on the heavy metal solidification/stabilization performance of four chemical solidifying agents in municipal solid waste incineration fly ash

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