About: Chemical properties of heavy metals in typical hospital waste incinerator ashes in China

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An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Chemical properties of heavy metals in typical hospital waste incinerator ashes in China
source	Elsevier; Medline; PMC
abstract	Abstract Incineration has become the main mechanism for hospital waste (HW) disposal in China after the outbreak of Severe Acute Respiratory Syndrome (SARS) in 2003. However, little information is available on the chemical properties of the resulting ashes. In the present study, 22HW ash samples, including 14 samples of bottom ash and eight samples of fly ash, were collected from four typical HW incineration plants located across China. Chemical analysis indicated that the HW ashes contained large amounts of metal salts of Al, Ca, Fe, K, Mg, Na with a concentration range of 1.8–315gkg−1. Furthermore, the ashes contained high concentrations of heavy metals such as Ag, As, Ba, Bi, Cd, Cr, Cu, Mn, Ni, Pb, Ti, Sb, Sn, Sr, Zn with a vast range of 1.1–121,411mgkg−1, with higher concentrations found in the fly ash samples. Sequential extraction results showed that Ba, Cr, Ni and Sn are present in the residual fraction, while Cd existed in the exchangeable and carbonate fractions. As, Mn, Zn existed in the Fe–Mn oxide fraction, Pb was present in the Fe–Mn oxide and residual fractions, and Cu was present in the organic matter fraction. Furthermore, toxicity characteristic leaching procedure (TCLP) results indicated that leached amounts of Cd, Cu and Pb from almost all fly ash samples exceeded the USEPA regulated levels. A comparison between the HW ashes and municipal solid waste (MSW) ash showed that both HW bottom ash and fly ash contained higher concentrations of Ag, As, Bi, Cd, Cr, Cu, Pb, Ti, and Zn. This research provides critical information for appropriate HW incineration ash management plans.
has issue date	2009-03-31(xsd:dateTime)
bibo:doi	10.1016/j.wasman.2008.09.003
bibo:pmid	18990557
has license	els-covid
sha1sum (hex)	b4e50b8285d678f5e9bd9982e2181ce64b9bbc61
schema:url	https://doi.org/10.1016/j.wasman.2008.09.003
resource representing a document's title	Chemical properties of heavy metals in typical hospital waste incinerator ashes in China
has PubMed Central identifier	PMC7127159
has PubMed identifier	18990557
schema:publication	Waste Management
resource representing a document's body	covid:b4e50b8285d678f5e9bd9982e2181ce64b9bbc61#body_text
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