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Characteristics of incineration ash for sustainable treatment and reutilization

Phua Zhenghui, Giannis Apostolos, Dong Zhili, Lisak Grzegorz, Ng Wunjern

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URIhttp://purl.tuc.gr/dl/dias/0EEE252E-45AC-487B-89C3-E5B46BCD6568-
Identifierhttps://doi.org/10.1007/s11356-019-05217-8-
Identifierhttps://link.springer.com/article/10.1007/s11356-019-05217-8-
Languageen-
Extent24 pagesen
TitleCharacteristics of incineration ash for sustainable treatment and reutilizationen
CreatorPhua Zhenghuien
CreatorGiannis Apostolosen
CreatorΓιαννης Αποστολοςel
CreatorDong Zhilien
CreatorLisak Grzegorzen
CreatorNg Wunjernen
PublisherSpringer Verlagen
Content SummaryMunicipal solid waste incineration (MSWI) generates bottom ash, fly ash (FA), and air pollution control (APC) residues as by-products. FA and APC residues are considered hazardous due to the presence of soluble salts and a high concentration of heavy metals, and they should be appropriately treated before disposal. Physicochemical characterization using inductively coupled plasma mass spectroscopy (ICP-MS), X-ray diffraction (XRD), and X-ray fluorescence (XRF) have shown that FA and APC have potential for reuse after treatment as these contain CaO, SiO2, and Al2O3. Studies conducted on treatment of FA and APC are categorized into three groups: (i) separation processes, (ii) solidification/stabilization (S/S) processes, and (iii) thermal processes. Separation processes such as washing, leaching, and electrochemical treatment improve the quality and homogeneity of the ash. S/S processes such as chemical stabilization, accelerate carbonation, and cement solidification modify hazardous species into less toxic constituents. Thermal processes such as sintering, vitrification, and melting are effective at reducing volume and producing a more stable product. In this review paper, the treatment processes are analyzed in relation to ash characteristics. Issues concerning mixing FA and APC residues before treatment, true treatment costs, and challenges are also discussed to provide further insights on the implications and possibilities of utilizing FA and APC as secondary materials.en
Type of ItemΑνασκόπησηel
Type of ItemReviewen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2020-06-10-
Date of Publication2019-
SubjectAir pollution control residuesen
SubjectCharacterizationen
SubjectFly ashen
SubjectIncinerationen
SubjectMunicipal solid wasteen
SubjectTreatment processesen
Bibliographic CitationZ. Phua, A. Giannis, Z.-L. Dong, G. Lisak and W.J. Ng, "Characteristics of incineration ash for sustainable treatment and reutilization," Environ. Sci. Pollut. Res., vol. 26, no. 17, pp. 16974-16997, Jun. 2019. doi: 10.1007/s11356-019-05217-8en

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