Recycling of powdered building wastes in environmental technologies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00354661" target="_blank" >RIV/68407700:21110/19:00354661 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5593/sgem2019V/4.2/S04.017" target="_blank" >https://doi.org/10.5593/sgem2019V/4.2/S04.017</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/sgem2019V/4.2/S04.017" target="_blank" >10.5593/sgem2019V/4.2/S04.017</a>
Alternative languages
Result language
angličtina
Original language name
Recycling of powdered building wastes in environmental technologies
Original language description
Concrete slurry waste (CSW) from the production of prestressed poles production in original and Fe-modified form (CSWFe) was studied as potential adsorbent of environmentally risk cations (Cd2+, Pb2+) and oxyanions (AsO43- and CrO42-) from contaminated waters. Structural, surface and chemical properties of adsorbents were characterized by Powder X-ray diffraction (XRD), X-ray fluorescence (XRF), Specific surface area (SBET) and Scanning electron microscopy (SEM). Adsorption experiments ran in a batch manner at laboratory temperature (20°C) with the model solutions of toxic ions. The modification of CSW with FeII increased its adsorption selectivity to anions about 20% at a lower sorbent consumption. The cations (Pb2+ and Cd2+) were adsorbed quantitatively (~100%) on CSW at the sorbent consumption of 10 - 120 g per 1 g of contaminant. The adsorption of AsO43- and CrO42- on CSWFe reached > 95% for AsO43-and 40-60% for CrO42-, at the sorbent consumption of 80 - 200 g per 1 g of contaminant.
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
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
<a href="/en/project/GA19-11027S" target="_blank" >GA19-11027S: Concrete slurry - hazardous waste or secondary raw material?</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
19th International Multidisciplinary Scientific Geoconference SGEM 2019
ISBN
978-619-7408-89-8
ISSN
1314-2704
e-ISSN
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Number of pages
6
Pages from-to
121-126
Publisher name
STEF92 Technology Ltd.
Place of publication
Sofia
Event location
Albena
Event date
Jun 30, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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