Adsorption properties of waste building sludge for environmental protection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00348862" target="_blank" >RIV/68407700:21110/21:00348862 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/21:43923332

Výsledek na webu

<a href="https://doi.org/10.3390/min11030309" target="_blank" >https://doi.org/10.3390/min11030309</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/min11030309" target="_blank" >10.3390/min11030309</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adsorption properties of waste building sludge for environmental protection

Popis výsledku v původním jazyce

Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used in original and Fe-modified forms (CSWFe, TSWFe ) was tested as an environmentally friendly and cheap sorbent of selected cations (Cd2+, Pb2+, Cs+) and anions (AsO4 3-, PO4 3-, CrO4 2-) from water. The experiments were performed with 0.1 and 0.5 mmol. L-1 model solutions in a batch manner at laboratory temperature. Adsorption data were fitted with the Langmuir model. The adsorption of cations (Pb2+ and Cd2+) ran almost quantitatively (>97%) on both CSW and TSW. Cesium (Cs+) adsorption on TSW reached 80%, while in the case of CSW, it was ineffective. The modification of CSW and TSW with FeII (CSWFe and TSWFe ) improved their adsorption selectivity to anions by up to 70%. The adsorption of PO4 3- and AsO4 3- ran quantitatively (>98%) on modified CSWFe and TSWFe and also on initial CSW, while CrO4 2- was effectively adsorbed (~80%) on TSWFe only. The adsorption affinity of tested ions in terms of adsorption capacity and sorbent consumption declined in order as follows: Pb2+ ~ Cd2+ >> Cs+ for cations and AsO4 3- ~ PO4 3- > CrO4 2- for anions.

Název v anglickém jazyce

Adsorption properties of waste building sludge for environmental protection

Popis výsledku anglicky

Waste building sludge (WBS) originating in the production of concrete prestressed poles (CSW) and technical stone (TSW) used in original and Fe-modified forms (CSWFe, TSWFe ) was tested as an environmentally friendly and cheap sorbent of selected cations (Cd2+, Pb2+, Cs+) and anions (AsO4 3-, PO4 3-, CrO4 2-) from water. The experiments were performed with 0.1 and 0.5 mmol. L-1 model solutions in a batch manner at laboratory temperature. Adsorption data were fitted with the Langmuir model. The adsorption of cations (Pb2+ and Cd2+) ran almost quantitatively (>97%) on both CSW and TSW. Cesium (Cs+) adsorption on TSW reached 80%, while in the case of CSW, it was ineffective. The modification of CSW and TSW with FeII (CSWFe and TSWFe ) improved their adsorption selectivity to anions by up to 70%. The adsorption of PO4 3- and AsO4 3- ran quantitatively (>98%) on modified CSWFe and TSWFe and also on initial CSW, while CrO4 2- was effectively adsorbed (~80%) on TSWFe only. The adsorption affinity of tested ions in terms of adsorption capacity and sorbent consumption declined in order as follows: Pb2+ ~ Cd2+ >> Cs+ for cations and AsO4 3- ~ PO4 3- > CrO4 2- for anions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

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

2021

Kód důvěrnosti údajů

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

Název periodika

Minerals

ISSN

2075-163X

e-ISSN

2075-163X

Svazek periodika

11

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000633925300001

EID výsledku v databázi Scopus

2-s2.0-85102694306