Characterization and leachability evaluation of medical wastes incineration fly and bottom ashes and their vitrification outgrowths

Tsakalou, C.; Papamarkou, S.; Tsakiridis, P.E.; Bartzas, Georgios; Tsakalakis, Konstantinos

doi:10.1016/j.jece.2017.12.012

Cited by 26 publications

(11 citation statements)

References 19 publications

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“…The mineralogical and morphological characterization of MBAs also showed the analysis of MBA composition. The agglomerated morphology formed by fine particles is consistent with a previous study, which could be consistent with lime ( Tsakalou et al, 2018 ). Therefore, Ca compounds were the main component in the MBAs collected from the Huoshenshan Hospital.…”

Section: Resultssupporting

confidence: 92%

“…Because the composition of input wastes, incinerator type, and combustion temperature could affect the MBA properties, the major element components of MBAs during the COVID-19 pandemic were separate from those during the prepandemic period. The chemical compositions of MBAs were compared with those in different countries, as shown in Table S5 ( Akyıldız et al, 2017 ; Gidarakos et al, 2009 ; Tsakalou et al, 2018 ; Tzanakos et al, 2014 ; Zhao et al, 2010 ). SiO 2 accounted for a large proportion of MBAs in the prepandemic incineration.…”

Section: Resultsmentioning

confidence: 99%

“…In a previous study, EN 12457–2, TCLP 1311, and HJ/T 299–2007 were extensively applied to assess the mobility and leachability of hazardous elements ( Tsakalou et al, 2018 ; Wang et al, 2015 ). To estimate the environmental risk of MBA caused by the potential emission of harmful metals, leaching tests were performed following three predefined methods ( Wang et al, 2015 ).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Characterization and evaluation of the leachability of bottom ash from a mobile emergency incinerator of COVID-19 medical waste: A case study in Huoshenshan Hospital, Wuhan, China

Miao

Wang

et al. 2022

Journal of Environmental Management

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Characterization and evaluation of the leachability of bottom ash from a mobile emergency incinerator of COVID-19 medical waste: A case study in Huoshenshan Hospital, Wuhan, China

Miao

Wang

et al. 2022

Journal of Environmental Management

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“…Although not included in PMF analysis, other species significantly correlated with the abovementioned species include maleate and Ag, which also stem from fuel combustion (Kawamura and Kaplan, 1987;Lin et al, 2005;Sorooshian et al, 2007). Ag in particular is an element in waste incinerator fly ash (Buchholz and Landsberger, 1993;Tsakalou et al, 2018), and its strong correlation with Co (r = 0.85) and Mo (r = 0.64) provides support for this source factor being linked to combustion processes. Maleate is commonly found in engine exhaust (Kawamura and Kaplan, 1987), whereas Cr is a tracer for power plant emissions (Singh et al, 2002;Behera et al, 2015).…”

Section: Combustionmentioning

confidence: 99%

Size-resolved composition and morphology of particulate matter during the southwest monsoon in Metro Manila, Philippines

et al. 2019

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Abstract. This paper presents novel results from size-resolved particulate matter (PM) mass, composition, and morphology measurements conducted during the 2018 southwest monsoon (SWM) season in Metro Manila, Philippines. Micro-orifice uniform deposit impactors (MOUDIs) were used to collect PM sample sets composed of size-resolved measurements at the following aerodynamic cut-point diameters (Dp): 18, 10, 5.6, 3.2, 1.8, 1.0, 0.56, 0.32, 0.18, 0.10, and 0.056 µm. Each sample set was analyzed for composition of the water-soluble fraction. Analysis for mass was carried out on two sample sets, whereas black carbon (BC) and morphology analysis were analyzed on a single sample set. The bulk of the PM mass was between 0.18 and 1.0 µm with a dominant mode between 0.32 and 0.56 µm. Similarly, most of the black carbon (BC) mass was found between 0.10 and 1.0 µm, peaking between 0.18 and 0.32 µm. These peaks are located in the Greenfield gap, or the size range between 0.10 and 1.0 µm, where wet scavenging by rain is relatively inefficient. In the range between 0.10 and 0.18 µm, BC constituted 78.1 % of the measured mass. Comparable contributions of BC (26.9 %) and the water-soluble fraction (33.4 %) to total PM were observed and most of the unresolved mass, which amounted to 39.6 % in total, was for diameters exceeding 0.32 µm. The water-soluble ions and elements exhibited an average combined concentration of 8.53 µg m−3, with SO42-, NH4+, NO3-, Na+, and Cl− as the major contributors. Positive matrix factorization (PMF) was applied to identify the possible aerosol sources and estimate their contribution to the water-soluble fraction of collected PM. The factor with the highest contribution was attributed to “aged aerosol” (48.0 %), while “sea salt” (22.5 %) and “combustion” emissions (18.7 %) had comparable contributions. “Vehicular/resuspended dust” (5.6 %) and “waste processing” emissions (5.1 %) were also identified. Microscopy analysis highlighted the ubiquity of nonspherical particles regardless of size, which is significant when considering calculations of parameters such as single scattering albedo, the asymmetry parameter, and the extinction efficiency. The significant influence from aged aerosol to Metro Manila during the SWM season indicates that local sources in this megacity do not fully govern this coastal area's aerosol properties. The fact that the majority of the regional aerosol mass burden is accounted for by BC and other insoluble components has important downstream effects on the aerosol hygroscopic properties, which depend on composition. The results are relevant for understanding the impacts of monsoonal features on size-resolved aerosol properties, notably aqueous processing and wet scavenging. Finally, the results of this work provide contextual data for future sampling campaigns in Southeast Asia such as the airborne component of the Cloud, Aerosol, and Monsoon Processes Philippines Experiment (CAMP2Ex) planned for the SWM season in 2019.

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“…These activities lead to contamination of air, water resources and soil, with organic and inorganic substances. Care for the environment has resulted in the development of many new technological processes for the treatment of solid, liquid and gaseous waste during industrial production, in order to reduce the emission of pollutants into the environment [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Vitrification as a method of soil remediation

Trifunović¹

2021

Zaštita materijala

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Various types of contaminated soil and hazardous waste that have a negative impact on the environment and human health can be treated with the vitrification process. This process is based on thermal treatment of contaminated soil or waste at high temperatures, with the addition of additives, whereby the soil/waste melts and a stable glass is formed. The resulting glass and glass-ceramic products have good mechanical resistance, chemically are resistant and immobilize contaminants, thus preventing their further negative impact on the environment. This paper presents a literature review of the vitrification process of different types of contaminated soil and hazardous waste.

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Characterization and leachability evaluation of medical wastes incineration fly and bottom ashes and their vitrification outgrowths

Cited by 26 publications

References 19 publications

Characterization and evaluation of the leachability of bottom ash from a mobile emergency incinerator of COVID-19 medical waste: A case study in Huoshenshan Hospital, Wuhan, China

Characterization and evaluation of the leachability of bottom ash from a mobile emergency incinerator of COVID-19 medical waste: A case study in Huoshenshan Hospital, Wuhan, China

Size-resolved composition and morphology of particulate matter during the southwest monsoon in Metro Manila, Philippines

Vitrification as a method of soil remediation

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