Abstract:
:Municipal solid waste incineration (MSWI) fly ashes are hazardous waste since they contain organic pollutants, heavy metals and an important amount of various soluble salts. However their chemical composition is interesting for their valorization in cement production. The objective of this paper is to assess the possibility of MSWI fly ashes reuse as cement raw meal, after pre-treatment, at a laboratory scale. The environmental impact has also been studied (analyses of the metals, of dioxins and furans and leaching tests on clinker produced). Experimental results show that the replacement of MSWI fly ash could be taken up to 30% in the raw mixes, according to the chemical composition of the MSWI fly ashes. This substitution is also to be refined according to the content of hazardous elements contents. This study also shows that the pre-treatment must be well carried out in order to limit the alkaline contents which may affect the quality of the cementitious phases.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Diliberto C,Meux E,Diliberto S,Garoux L,Marcadier E,Rizet L,Lecomte Adoi
10.1080/09593330.2018.1525434subject
Has Abstractpub_date
2020-04-01 00:00:00pages
1199-1208issue
9eissn
0959-3330issn
1479-487Xjournal_volume
41pub_type
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