Use of waste ceramics in adsorption technologies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902714" target="_blank" >RIV/60461373:22310/16:43902714 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/16:00466225

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.clay.2016.02.016" target="_blank" >http://dx.doi.org/10.1016/j.clay.2016.02.016</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.clay.2016.02.016" target="_blank" >10.1016/j.clay.2016.02.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of waste ceramics in adsorption technologies

Popis výsledku v původním jazyce

Waste brick dust (WBD) was tested as a potential sorbent of cationic and anionic contaminants, including radioactive residues. For adsorption experiments, model water solutions of highly toxic and/or ecologically harmful cations (Cd, Pb, Cs) and anions (As, Sb, Cr, U) were selected. The adsorption of Cd2 + and Pb2 + on WBD was most effective (> 95%) at a very low sorbent dosage (up to 6 g L? 1). In terms of anionic contaminants, UVI was adsorbed as cationic complex particles [(UO2)n(OH)2n ? 1]+ almost quantitatively (> 95%) at a sorbent dosage of 3 g L? 1. The effective adsorption of AsV (> 90%) occurred at around a dosage of 15 g L? 1. The adsorption of Cs+, CrVI and AsIII on WBD was almost ineffective. Except for Cs+ and CrVI, all investigated ions were adsorbed according to the Langmuir isotherm model, at the theoretical adsorption capacities Qt ? approximately 0.1 mmol g? 1 for Cd2 +, Pb2 + and UVI, and approximately. 0.04 for AsV and AsIII. The leachability of toxic particles from saturated WBD was very low for selectively adsorbed particles (? 0.01?0.08% wt.) and their stability decreased in the order: Pb2 + ? Cd2 + > UVI > AsV > AsIII ? Cs+ ? CrVI. The approximate consumption of WBD per gram of toxic element was found to be about ? 60 g for Pb2 + and UVI, ? 100 g for Cd2 + and > 400 g for AsV. ? 2016 Elsevier B.V.

Název v anglickém jazyce

Use of waste ceramics in adsorption technologies

Popis výsledku anglicky

Waste brick dust (WBD) was tested as a potential sorbent of cationic and anionic contaminants, including radioactive residues. For adsorption experiments, model water solutions of highly toxic and/or ecologically harmful cations (Cd, Pb, Cs) and anions (As, Sb, Cr, U) were selected. The adsorption of Cd2 + and Pb2 + on WBD was most effective (> 95%) at a very low sorbent dosage (up to 6 g L? 1). In terms of anionic contaminants, UVI was adsorbed as cationic complex particles [(UO2)n(OH)2n ? 1]+ almost quantitatively (> 95%) at a sorbent dosage of 3 g L? 1. The effective adsorption of AsV (> 90%) occurred at around a dosage of 15 g L? 1. The adsorption of Cs+, CrVI and AsIII on WBD was almost ineffective. Except for Cs+ and CrVI, all investigated ions were adsorbed according to the Langmuir isotherm model, at the theoretical adsorption capacities Qt ? approximately 0.1 mmol g? 1 for Cd2 +, Pb2 + and UVI, and approximately. 0.04 for AsV and AsIII. The leachability of toxic particles from saturated WBD was very low for selectively adsorbed particles (? 0.01?0.08% wt.) and their stability decreased in the order: Pb2 + ? Cd2 + > UVI > AsV > AsIII ? Cs+ ? CrVI. The approximate consumption of WBD per gram of toxic element was found to be about ? 60 g for Pb2 + and UVI, ? 100 g for Cd2 + and > 400 g for AsV. ? 2016 Elsevier B.V.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-24155S" target="_blank" >GA13-24155S: Kontrola a optimalizace vzniku zeolitových fází v aluminosilikátových pojivech</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Applied Clay Science

ISSN

0169-1317

e-ISSN

—

Svazek periodika

134

Číslo periodika v rámci svazku

DEC 2016

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

145-152

Kód UT WoS článku

000389398400011

EID výsledku v databázi Scopus

2-s2.0-84966309042