Application of powdered building wastes in adsorption technologies

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00348850" target="_blank" >RIV/68407700:21110/20:00348850 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.37904/nanocon.2019.8772" target="_blank" >http://dx.doi.org/10.37904/nanocon.2019.8772</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/nanocon.2019.8772" target="_blank" >10.37904/nanocon.2019.8772</a>

Result language
angličtina
Original language name
Application of powdered building wastes in adsorption technologies
Original language description
Two powdered wastes originating in building materials production (waste brick dust (WBD) from the production of ceramic blocks and concrete slurry waste (CSW) from prestressed poles production used also in Fe-modified form (CSWFe)) were studied as potential adsorbents of ecologically risk cations (Cd2+, Pb2+) and anions (AsV as AsO43- and CrVI as CrO42-) from contaminated waters. The WBD indicated very good adsorption selectivity for Cd2+, Pb2+ and AsV at a high adsorption efficiency (>90%), and worse parameters for CrVI adsorption (<30% adsorption efficiency). The sorbent consumption was low (<70 – 100 g per 1 g of contaminant) for cations (Cd2+, Pb2+) and more than four times higher for AsV. The adsorption of CrVI on WBD was ineffective. The adsorption of cations (Pb2+ and Cd2+) on CSW and anions (AsO43- and CrO42-) on CSWFe ran in the same manner as on WBD. Fe-modification of CSW to CSWFe increased its adsorption efficiency to anions by 15. – 20%. The cations (Pb2+, Cd2+) were adsorbed almost quantitatively (~100%) on the initial CSW at the sorbent consumption of 10 – 120 g per 1 g of contaminant. The adsorption of anions (AsV, CrVI) on CSWFe reached ˃95% for AsV and 40-60% for CrVI, 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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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)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings 11th International Conference on Nanomaterials - Research & Application
ISBN
978-80-87294-95-6
ISSN
2694-930X
e-ISSN
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Number of pages
6
Pages from-to
267-272
Publisher name
Tanger
Place of publication
Ostrava
Event location
Brno
Event date
Oct 16, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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