Municipal solid waste incineration residues recycled for typical construction materials—a review

Chen, Dan; Zhang, Yingying; Xu, Yong; Nie, Qing; Yang, Zunhua; Sheng, Wenyu; Qian, Guangren

doi:10.1039/d1ra08050d

Cited by 36 publications

(19 citation statements)

References 104 publications

(211 reference statements)

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“…Bottom ash and slag consist of a variety of melting products and also non-combustible glass, metal, ceramic, rock material and organic matter [15]. After screening for metals (iron, copper, aluminium and steel), bottom slag may be used as a building material intended for field structures or other earthworks [13,16] or manufactured construction materials [17], if the heavy metal and soluble salt concentrations are suitable based on environmental standards. The ash residues separated from the flue gases, such as fly ash, air pollution control (APC) residue and boiler ash, are most often classified as hazardous waste [13,14,16].…”

Section: Waste Incinerationmentioning

confidence: 99%

Radioactivity of residues from waste incineration facilities in Finland

et al. 2023

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Waste incineration in Europe has been increasing in the past few decades as there is a need to reduce the burden on landfills and their associated environmental concerns. While incineration reduces the volume of the waste, the volume of slag and ash are still substantial. To find out potential radiation risks that incineration residues could set to the workers or to the public, the levels of radioactive elements in the residues were investigated from 9 waste incineration plants in Finland. Natural and artificial radionuclides were detected in the residues, but in general the activity concentrations were low. This study shows that the level of Cs-137 in the fly ash from municipal waste incineration follows the pattern of 1986 fallout zones in Finland, although the levels are significantly lower than in ash from bioenergy production from the same areas. Am-241 was also detected in many samples, although the activity concentrations were very low. Based on the findings in this study, the typical ash and slag residues from municipal waste incineration do not need radiation protection measures to workers or the public even in regions which received up to 80 kBq/m² of Cs-137 fallout in 1986. The further use of these residues need not be restricted due to the radioactivity. Hazardous waste incineration residues and other special cases need to be considered separately, depending on the original waste composition.

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Section: Waste Incinerationmentioning

confidence: 99%

Radioactivity of residues from waste incineration facilities in Finland

et al. 2023

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“…In addition, all the fly ash waste that was sampled and analyzed for this study is currently landfilled, consuming valuable space and resources. The problem of eradicating toxic substances has become the largest obstacle to the application of fly ash [28].…”

Section: Discussionmentioning

confidence: 99%

Characterization of Dioxins and Heavy Metals in Chelated Fly Ash

et al. 2022

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Municipal solid waste incineration (MSWI) fly ash contains highly toxic heavy metals and polychlorinated dibenzo dioxins/furans (PCDD/Fs), which are a type of hazardous waste. The pollution characteristics of fly ash have changed with the development of stoker grate incinerators and the fly ash treatment technology; however, no research has been focused on this in recent years. In this study, 12 fly ash samples were collected from 9 grate power plants in southeastern China, and their PCDD/Fs and heavy metal concentrations were determined and compared to previous fly ash data. The PCDD/Fs concentration in fly ash was in the range of 0.002–0.051 ngI-TEQ/g, with an average of 0.027 ngI-TEQ/g. Furthermore, 1,2,3,4,6,7,8-HpCDD and OCDD made the most significant contributions to PCDDs. The distribution of 10 dioxins exhibited bimodal, unimodal, and normal characteristics. Linear fitting demonstrated a strong correlation between toxicity and 1,2,3,7,8-PentaCDD, 1,2,3,7,8-PentaCDF, and 2,3,4,7,8-PentaCDF. Concerning heavy metals, Pb poses a significant environmental risk. This is the first time that fly ash treated with a chelating agent has been thoroughly analyzed, which is vital for understanding the pollution level and treatment of fly ash derived from current power plants.

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“…Furthermore, in a noteworthy milestone achieved in 2007, the successful synthesis of mesoporous silica materials, including MCM-41, SBA-15, and SBA-16, was accomplished using power plant bottom ash as a precursor [ 29 ]. Additionally, mesoporous silica has been prepared through a sol-gel approach employing municipal solid incineration bottom ash [ 30 ], and industrial fly ash [ 31 ]. Silica nanoparticles were synthesized from sugar industry bottom ash [ 32 ], and paper industry fly ash [ 33 ] with an alkaline extraction method.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of polyvinyl alcohol (PVA)-glycerol composite films incorporating nanosilica from municipal solid waste incinerator bottom ash

Hanh,

Suwunwong,

Chantrapromma

et al. 2024

Heliyon

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Municipal solid waste incineration residues recycled for typical construction materials—a review

Abstract: MSWI residues can be recycled for preparing construction materials (cast stone, glass-ceramic, cement and concrete) with little environmental impact after proper treatment.

Cited by 36 publications

References 104 publications

Radioactivity of residues from waste incineration facilities in Finland

Radioactivity of residues from waste incineration facilities in Finland

Characterization of Dioxins and Heavy Metals in Chelated Fly Ash

Preparation and characterization of polyvinyl alcohol (PVA)-glycerol composite films incorporating nanosilica from municipal solid waste incinerator bottom ash

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