The leachability of heavy metals from alkali-activated fly ash and blast furnace slag matrices
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F16%3APU118560" target="_blank" >RIV/00216305:26310/16:PU118560 - isvavai.cz</a>
Result on the web
<a href="http://www.scientific.net/MSF.851.141" target="_blank" >http://www.scientific.net/MSF.851.141</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The leachability of heavy metals from alkali-activated fly ash and blast furnace slag matrices
Original language description
The ability of alkali-activated materials (AAMs) to fix and immobilize heavy metals was investigated. Two raw materials were used to prepare alkali-activated matrices – high-temperature fly ash and blast furnace slag (BFS). NaOH served as an alkaline activator. Two heavy metals (Mn, Ni) were added in various amounts into the matrices to find out the influence of dosage of heavy metal on the leachability and mechanical properties of the matrices. Leachability was measured as concentration of heavy metals in leachates (ČSN EN 12457-4) by inductively coupled plasma/optical emission spectrometry (ICP/OES). Structure of prepared matrices was characterized by scanning electron microscopy (SEM). Increasing of dosage of heavy metals added to the matrices led to decrease of mechanical properties. The leaching tests showed, that both matrices can immobilize Mn and Ni in dosages of added heavy metal 0.1 – 2,5%. Higher dosages caused deterioration of the matrices and increasing of leachability of fly ash matrices. After alkali activation both heavy metals were transformed into the form of insoluble salts.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
6th Conference on Chemistry and Life, 2015
ISBN
978-80-214-5228-2
ISSN
0255-5476
e-ISSN
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Number of pages
6
Pages from-to
141-146
Publisher name
Trans Tech Publications Inc.
Place of publication
Switzerland
Event location
Brno
Event date
Sep 2, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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