Assumptions of Powdered Building Wastes for Selective Adsorption of Lead and Cesium from Water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921575" target="_blank" >RIV/60461373:22310/20:43921575 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/20:00340066

Výsledek na webu

<a href="https://aip.scitation.org/doi/pdf/10.1063/5.0000383" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/5.0000383</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0000383" target="_blank" >10.1063/5.0000383</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assumptions of Powdered Building Wastes for Selective Adsorption of Lead and Cesium from Water

Popis výsledku v původním jazyce

Growing amount of building waste arising from the production of common and special materials has found new applications in useful and environmentally-friendly technologies. Waste brick dust (WBD) from the production of ceramic blocks, concrete slurry waste (CSW) generated in prestressed poles production and powdered waste from the treatment of technical stone (TSW) were tested as cheap and available adsorbents of lead (Pb) and cesium (Cs) from contaminated water. The structural, chemical and surface characteristics of materials were determined by X-ray diffraction (XRD), X-ray fluorescence (XRF), specific surface area (SBET) and zero point of charge (pHZPC), model solutions of Cs+ and Pb2+ (0.1 mmol.L−1 and 0.5 mmol.L−1) were used in adsorption experiments. All sorbents were promising for quantitative Pb2+ removal (&gt;99%) at a low sorbent consumption (~10 g per 1 g of Pb). Generally worse Cs+ adsorption was related to the different thermodynamic and binding properties of ydrated Cs+ and Pb2+ ions. The efficiency of Cs+ adsorption decreased in the order: TSW (70–90%) &gt;&gt; WBD (25–50%) &gt; CSW (10–15%). In terms of sorbent consumption, only TSW could be considered a perspective Cs+ sorbent in the technological use (~102 g per 1 g of Pb). In order to assess the applicability of building wastes in adsorption technologies, the verification of Pb2+and Cs+ stability in saturated sorbents will be necessary.

Název v anglickém jazyce

Assumptions of Powdered Building Wastes for Selective Adsorption of Lead and Cesium from Water

Popis výsledku anglicky

Growing amount of building waste arising from the production of common and special materials has found new applications in useful and environmentally-friendly technologies. Waste brick dust (WBD) from the production of ceramic blocks, concrete slurry waste (CSW) generated in prestressed poles production and powdered waste from the treatment of technical stone (TSW) were tested as cheap and available adsorbents of lead (Pb) and cesium (Cs) from contaminated water. The structural, chemical and surface characteristics of materials were determined by X-ray diffraction (XRD), X-ray fluorescence (XRF), specific surface area (SBET) and zero point of charge (pHZPC), model solutions of Cs+ and Pb2+ (0.1 mmol.L−1 and 0.5 mmol.L−1) were used in adsorption experiments. All sorbents were promising for quantitative Pb2+ removal (&gt;99%) at a low sorbent consumption (~10 g per 1 g of Pb). Generally worse Cs+ adsorption was related to the different thermodynamic and binding properties of ydrated Cs+ and Pb2+ ions. The efficiency of Cs+ adsorption decreased in the order: TSW (70–90%) &gt;&gt; WBD (25–50%) &gt; CSW (10–15%). In terms of sorbent consumption, only TSW could be considered a perspective Cs+ sorbent in the technological use (~102 g per 1 g of Pb). In order to assess the applicability of building wastes in adsorption technologies, the verification of Pb2+and Cs+ stability in saturated sorbents will be necessary.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA19-11027S" target="_blank" >GA19-11027S: Betonárenský kal - nebezpečný odpad nebo druhotná surovina?</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Special Concrete and Composites 2019

ISBN

978-0-7354-1961-2

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

"020006-1"-"020006-6"

Název nakladatele

AIP Publishing LLC

Místo vydání

Melville, New York

Místo konání akce

Lisek

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000557821500007