<div class="csl-bib-body">
<div class="csl-entry">Hofer, S., Fellner, J., & Lederer, J. (2022). Ökonomische Grenzen der sauren Flugaschenwäsche von Müllverbrennungsflugaschen als Alternative zu herkömmlichen Entsorgungslösungen. In S. Thiel, E. Thome-Kozmiensky, D. G. Senk, H. Wotruba, H. Antrekowitsch, & R. Pomberger (Eds.), <i>Mineralische Nebenprodukte und Abfälle 9 - Aschen, Schlacken, Stäube und Baurestmassen -</i> (pp. 260–274). Thomé-Kozmiensky Verlag GmbH.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/153781
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dc.description.abstract
The proposed transformation of the economy towards higher circularity increases also the importance of waste incineration residues as source of secondary raw material. While metals, glass and mineral fractions are recoverable from bottom ash using mainly mechanical technologies, heavy metals, condensed on fly ash particles, are chemically extractable with acids. Besides the recovery of metals, especially Zinc, mass reduction as well as decontamination to fulfill criteria for non-hazardous waste landfills are the main economic drivers for acidic fly ash washing. A hypothetical scenario of different disposal options for 20.000 tons fly ash per annual was investigated. The specific costs per ton of fly ash were evaluated when acidic washing according to the FLUWA process was applied and compared to the specific costs per ton of fly ash of a conventional disposal of fly ash either stabilization with cement and subsequent landfilling on a non-hazardous waste landfill, or disposal on an underground disposal facility for hazardous waste. On the basis of literature data, a material-flow-analysis was performed to analyze material flows associated with the application of the FLUWA process. For an economic evaluation the energy demand was taken from literature. The investment costs were roughly estimated. Information about disposal and landfill fees of the output fractions were gathered from FLUWA operators and taken from literature. Two scenarios were considered: in the first one, the acidic washed fly ash is assumed to satisfy regulations for non-hazardous waste landfills. In the second one, the acidic washed fly ash exceeds threshold values of non-hazardous landfills is hence recirculated back into the incinerator. The economic evaluation showed that the specific disposal costs per ton of fly ash are much higher when FLUWA is applied (increase of about 30%). The main reasons for this are high costs for the recycling of the zinc-containing hydroxidesludge. Operational costs are mainly depending on the consumption of HCl and H2O2. Acidity of the scrubber water and alkalinity of the fly ash are the key parameters for the HCl consumption, while the content of metallic alumina and Fe2+ influence the H2O2 consumption.
en
dc.language.iso
de
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dc.subject
Kreislaufwirtschaft
de
dc.subject
Müllverbrennung
de
dc.subject
Flugaschen
de
dc.title
Ökonomische Grenzen der sauren Flugaschenwäsche von Müllverbrennungsflugaschen als Alternative zu herkömmlichen Entsorgungslösungen
de
dc.title.alternative
Economic evaluation of acidic washing of waste incineration fly ash as alternative treatment to conventional disposal solutions
en
dc.type
Inproceedings
en
dc.type
Konferenzbeitrag
de
dc.contributor.editoraffiliation
TK Verlag
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dc.contributor.editoraffiliation
TK Verlag
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dc.relation.isbn
978-3-944310-58-9
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dc.description.startpage
260
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dc.description.endpage
274
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dcterms.dateSubmitted
2022-02-28
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dc.type.category
Full-Paper Contribution
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tuw.booktitle
Mineralische Nebenprodukte und Abfälle 9 - Aschen, Schlacken, Stäube und Baurestmassen -
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tuw.container.volume
9
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tuw.relation.publisher
Thomé-Kozmiensky Verlag GmbH
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tuw.relation.publisherplace
Neuruppin
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tuw.researchTopic.id
E5
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tuw.researchTopic.name
Efficient Utilisation of Material Resources
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E226-02 - Forschungsbereich Abfallwirtschaft und Ressourcenmanagement
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tuw.publication.orgunit
E166-01-1 - Forschungsgruppe Partikeltechnologie, Recyclingtechnologie und Technikbewertung
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dc.description.numberOfPages
15
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tuw.author.orcid
0000-0003-3443-8513
-
tuw.event.name
Berliner Konferenz - Mineralische Nebenprodukte und Abfälle
de
tuw.event.startdate
25-04-2022
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tuw.event.enddate
26-04-2022
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Berlin
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tuw.event.country
DE
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tuw.event.presenter
Hofer, Simon
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wb.sciencebranch
Chemie
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wb.sciencebranch
Sonstiges Bauwesen
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wb.sciencebranch
Umwelttechnik
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wb.sciencebranch.oefos
1040
-
wb.sciencebranch.oefos
2019
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wb.sciencebranch.oefos
2071
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wb.sciencebranch.value
20
-
wb.sciencebranch.value
20
-
wb.sciencebranch.value
60
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item.openairetype
Inproceedings
-
item.openairetype
Konferenzbeitrag
-
item.grantfulltext
restricted
-
item.cerifentitytype
Publications
-
item.cerifentitytype
Publications
-
item.languageiso639-1
de
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item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cf
-
item.fulltext
no Fulltext
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crisitem.author.dept
E166-01-1 - Forschungsgruppe Partikeltechnologie, Recyclingtechnologie und Technikbewertung
-
crisitem.author.dept
E226-02 - Forschungsbereich Abfallwirtschaft und Ressourcenmanagement
-
crisitem.author.dept
E166-01-1 - Forschungsgruppe Partikeltechnologie, Recyclingtechnologie und Technikbewertung
-
crisitem.author.orcid
0000-0003-3443-8513
-
crisitem.author.parentorg
E166-01 - Forschungsbereich Mechanische Verfahrenstechnik und Luftreinhaltetechnik
-
crisitem.author.parentorg
E226 - Institut für Wassergüte und Ressourcenmanagement
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crisitem.author.parentorg
E166-01 - Forschungsbereich Mechanische Verfahrenstechnik und Luftreinhaltetechnik