Characteristics of municipal solid wastes incineration (MSWI) fly ash–cement matrices and effect of mineral admixtures on composite system

Shi, Huisheng; Kan, Lili

doi:10.1016/j.conbuildmat.2008.12.016

Cited by 82 publications

(29 citation statements)

References 19 publications

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“…and Cu 2? (Shi and Kan 2009). In this regard, Onori et al (2011) proposed a chemical and mechanical activation using NaOH, KOH, CaCl 2 or CaSO 4 .…”

Section: Concrete and Cementmentioning

confidence: 98%

Environmental sustainability assessment of the management of municipal solid waste incineration residues: a review of the current situation

Margallo

Taddei

Hernández-Pellón

et al. 2015

Clean Techn Environ Policy

122

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Incineration has become an attractive option for municipal solid waste (MSW) management, due to its several benefits. In fact, it allows volume and mass reduction of waste and energy recovery from MSW combustion. Nevertheless, MSW incineration (MSWI) produces three main types of residues: bottom ash (BA), fly ash (FA) and air pollution control (APC) residues, which require an adequate handling. BA is the most significant by-product from MSWI and is generally considered as nonhazardous waste. Instead, FAs are included as hazardous wastes because are characterised by high content of chlorides, heavy metals and organic compounds. The aim of this paper was to examine the characteristics of MSWI solid residues, the management and reuse of these wastes and their environmental assessment from a life cycle perspective. It was noted that the main components that make up the residues are lead and zinc as well as oxides, mainly CaO, SiO 2 and Al 2 O 3 . Furthermore, it is necessary to take into account the presence of PCDD/F which characterised FA and APC residues, mainly due to chlorine content. Chemical and physical properties of those residues make possible their reuse as construction material, as adsorbent, as well as in geotechnical and agricultural applications. Nevertheless, several studies have demonstrated that a drawback of the reuse of MSWI residues is the existence of heavy metals in elevated concentrations which may affect the environmental quality. In this regard, many studies were aimed to assess the environmental impact related to the introduction of MSWI residues as secondary material in several fields of application.

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“…and Cu 2? (Shi and Kan 2009). In this regard, Onori et al (2011) proposed a chemical and mechanical activation using NaOH, KOH, CaCl 2 or CaSO 4 .…”

Section: Concrete and Cementmentioning

confidence: 98%

Environmental sustainability assessment of the management of municipal solid waste incineration residues: a review of the current situation

Margallo

Taddei

Hernández-Pellón

et al. 2015

Clean Techn Environ Policy

122

View full text Add to dashboard Cite

show abstract

“…Municipal solid wastes incineration (MSWI) fly ash belongs largely to the CaO-CaCl 2 -CaSO 4 -SiO 2 system, but leaching tests show that concentrations of heavy metals such as Cd, Cr, Cu, Pb and Zn exceed the regulatory limits (Yvon et al, 2006;Shi and Kan, 2009;Yang et al, 2012). It is, therefore, classified as hazardous waste in China and requires additional detoxification processing prior to final disposal or store.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of heavy metals in MSWI fly ash using silica fume

et al. 2014

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“…American State Bureau of Environmental Protection refers to cement immobilisation as the best technology to dispose the poisonous and harmful wastes (Landreth 1986). Shi and Kan (2009) showed that MSWI FA was mainly composed of silica, calcium, alumina oxide, and iron oxide, which were quite similar to those of complementary cementitious materials commonly used, such as granulated blast-furnace slag and coal FA (see Table 3.11).…”

Section: Cement Based Processesmentioning

confidence: 80%

“…Thus, MSWI FA does not only imply pollution, but also allows resource reusing. They evaluated the flexural and compressive strength of the mortar specimens and they concluded that they decreased gradually with increasing of MSWI FA content (Shi and Kan 2009).…”

Section: Cement Based Processesmentioning

confidence: 99%